Find your situation and the message as it appears on screen. Each row says what it means and what to do.
About the message language
The app messages and labels are quoted here exactly as they appear when the app is set to English. If your app is set to Spanish, you will see the Spanish original. Messages from the web dashboard (food.yammbo.com) are shown in their original Spanish, followed by a translation.
I cannot sign in with my PIN
| Message | Cause | What to do |
|---|
| ”Wrong PIN” | PIN typed incorrectly | Type it again. It signs in from 4 digits; with 6 digits it signs in by itself. |
| ”Too many attempts. Wait (number) s” | 5 wrong tries in a row lock the keypad for 30 seconds | Wait for the countdown to end. |
| ”Two employees have this PIN, so nobody can sign in with it. Ask the owner to change one of them.” | Two active employees share the same PIN | An owner changes one of the PINs (in the web dashboard if the register is linked). |
| ”Your role has no access to any section. Ask the owner for help.” | Your role has no permissions | An owner must give permissions to your role. |
| ”Your role cannot do this. Ask someone with permission to enter their PIN.” | The action needs a permission you do not have | Have a supervisor type their PIN in Supervisor authorization. It is valid for 2 minutes and a single action. |
| ”Wrong PIN or no permission” | The supervisor’s PIN is wrong or their role lacks that permission | Try another supervisor. |
| ”Entering the kitchen without a PIN is no longer available. Log in with a PIN.” | The role or the Enter without a PIN setting changed | Sign in with your PIN. |
| The tablet locks by itself | Auto-lock (5 minutes by default) | Adjust it in Settings > This device > Auto-lock (minutes). With 0 it never locks. |
Account and web dashboard
| Message | Cause | What to do |
|---|
| ”Wrong email or password.” | Sign-in details typed incorrectly | Check them or use «Olvidé mi contraseña» (I forgot my password). The dashboard signs in with email and password, not with a code. |
| ”Verify your email first.” | The account has not confirmed its email yet | Enter the 6-digit code that was emailed to you. |
| ”The code is not correct or has already expired.” | The code is valid for 30 minutes | Tap «Enviar otro código» (Send another code). |
| ”Too many attempts. Request a new code.” | The code’s attempts ran out | Request a new code. |
| ”Too many attempts. Wait a few minutes and try again.” | Rate limit | Wait a few minutes. |
| ”This account is deactivated. Write to support@yammbo.com.” | Deactivated account | Write to support. |
| ”We could not send the email. Try again in a few minutes.” | Email sending failed | Try again in a few minutes. |
| ”You do not have permission to do this.” | Your role lacks Settings for that section | Ask an Owner to change your role. |
| ”Someone else changed this while you were editing. Reload the page and try again.” | Two people edited at once | Reload the page. |
| ”This restaurant changed status while you were viewing it. Reload the page.” | A status change happened at the same time | Reload the page. |
| ”Under review by Yammbo. We will email you when it is approved.” | You finished the wizard; approval is pending | Wait for the “We approved…” email. You cannot link the register until then. |
| ”Your restaurant is suspended.” | Yammbo suspended the business | Tap «Hablar con Yammbo» (Talk to Yammbo) or write to support@yammbo.com. Your page and new orders are off; you can keep serving the orders you already have. |
| ”This feature is turned off for your restaurant.” | A feature of your plan is off | Contact Yammbo. |
I cannot link the register
To link you need three things: the business approved (status “Published”), an Owner employee with a PIN in the web dashboard and, if you use a code, that it has not expired.
With your email (first start)
| Message | Cause | What to do |
|---|
| ”Type a valid e-mail.” | Email typed incorrectly | Fix it. |
| ”The code is wrong, expired or already used. Ask for a new one.” | The emailed code is valid for 30 minutes and works once | Tap Resend code, enabled after 30 seconds. |
| ”The sign-in expired (it lasts 5 minutes). Start again with your e-mail.” | You took more than 5 minutes after typing the code | Start again with your email. |
| ”Your account can no longer link registers to this restaurant.” | Your account lost the Settings permission in the restaurant | Ask an Owner to give it back. |
| ”Your account has no restaurant you can link. Finish the sign-up on the web.” | There is no business ready | Finish the wizard at food.yammbo.com and wait for approval. |
| ”Only the account owner can create the first employee…” | The restaurant has no employees and you are not the account owner | Go to food.yammbo.com/dashboard/team and create an employee with the Owner role. |
| ”The web employees could not be applied because there is no active owner…” / “The web employees were not applied: the register would have been left without an active owner…” | The web has employees but none is an active Owner | At food.yammbo.com/dashboard/team, keep at least one active Owner. |
| ”The employees could not be fetched. Check the internet and try again.” | No internet | Check the connection and retry. |
| ”That employee already exists in the account. Contact Yammbo support.” | The employee already exists on the web | Write to support. |
| ”Type a name.” / “The PIN must have 4 to 6 numbers.” / “The two PINs do not match.” | Data when creating the business | Fix the field. |
With the dashboard code («Dispositivos»)
| Message | Cause | What to do |
|---|
| ”The code is wrong or expired, or the restaurant does not exist or is not active. Generate a new code in the web panel.” | Code mistyped, expired (5 minutes), already used, replaced by a newer one, or business not active | In the dashboard, «Dispositivos» (Devices) > «Vincular dispositivo» (Link device), generate another and type it within 5 minutes. Also check the restaurant name. |
| ”Type the restaurant address, for example food.yammbo.com/my-restaurant.” | Address missing | Type your restaurant’s name or address. |
| ”The code has 6 digits.” | Incomplete code | Type all 6 digits. |
| ”Check the data: the register name can be up to 60 characters.” | Register name too long | Shorten it. |
| ”Too many attempts. Wait a few minutes and try again.” | Too many attempts or codes | Wait a few minutes. |
| ”This restaurant does not have register connection enabled. Enable it in the web dashboard.” | The register connection feature is off | Contact Yammbo. |
| ”the restaurant account is not active” / “…is suspended.” | Business not approved or suspended | Wait for approval or contact Yammbo. |
| ”No connection with food.yammbo.com. Check your internet and try again.” | No internet | Connect the tablet to the internet. |
| ”The server is not answering right now. Try again in a few minutes.” | Service unavailable for a moment | Try again later. |
| ”The server answered something unexpected. Try again.” | Unexpected response | Try again. |
| ”The link could not be stored securely on this tablet. Revoke this register in the web panel (Devices/Registers) and generate a new code.” | The tablet could not store the link | In the web dashboard, «Dispositivos», remove that register with Remove, generate a new code and link again. |
Errors in the dashboard when generating the code
| Message | Cause | What to do |
|---|
| ”First create an employee with the Owner role in the Employees section of Team. Without one a tablet cannot be linked.” | There is no active employee with the Owner role | In «Equipo» (Team) > «Empleados del POS» (POS employees) tap Add employee, with the Owner role and a 4 to 6 digit PIN. |
| ”Choose the location” | There are several active locations and you did not pick one, or none is active | Choose the «Sucursal» (Location) or activate one. |
| ”The location does not belong to this business.” | Location from another business | Choose one of your own. |
| ”Too many attempts. Wait a few minutes and try again.” | Maximum of 30 codes per hour, or too many failed attempts | Wait a few minutes. |
| ”We could not find that device.” | You removed a device that no longer exists | Reload the page. |
A tablet is linked to one location for good. If your device shows “No location (link again)”, remove it and link it again.
Employees, roles and permissions
| Message | Cause | What to do |
|---|
| ”That PIN is already used by another active employee. Choose another.” | The PIN must be unique among active employees | Choose another PIN (4 to 6 numbers). |
| ”The PIN has 4 to 6 numbers.” / “The PIN must have 4 to 6 numbers.” | Wrong format | Fix it. |
| ”at least one active owner must remain.” | You try to deactivate or change the role of the last owner | Create another Owner first. |
| ”Only an owner can change an owner or give the Owner role.” | Permission missing | Have an Owner do it. |
| ”You cannot give or change permissions that you do not have.” | Permission missing | Have someone with that permission do it. |
| ”You cannot edit or delete your own role.” | Role rule | Have another owner edit it. |
| ”Some employees have this role. Change their role before deleting it.” | Role in use | Change those employees’ role. |
| ”Built-in roles cannot be deleted.” | Owner, Manager, Cashier, Waiter and Kitchen | They cannot be deleted. |
| ”The online account takes up to 100 employees.” / “You reached the maximum of 100 employees.” | Employee limit | Deactivate the ones you no longer use. |
| ”Reactivate the employee before changing their PIN.” / “To reactivate, set a new PIN.” | Deactivated employee | Reactivate with a new PIN. |
If the register is linked, employees, roles and PINs are managed in the web dashboard («Equipo» section).
Register offline and web orders
The online store only accepts orders when a linked register of that location is on and online. If 3 minutes pass without a connection, the store stops accepting orders until the register comes back.
| Where you see it | Message | What to do |
|---|
| Your customer, in the store | ”This location is not receiving online orders right now. Try again later.” | Open the app on the linked register, with internet. |
| Web dashboard, Panel section | ”No register connected: this location is not receiving web orders. Open Yammbo Food POS on the tablet.” | Open the app on the tablet. With «Ver dispositivos» (See devices) check the “Last contact” (if it is more than 3 minutes old, it is offline). |
| Register, banner | ”Web orders paused: no connection with food.yammbo.com. They resume by themselves when the connection is back.” | Check the tablet’s internet. It resumes by itself. |
| Register, banner | ”Link this register again” | Tap the notice and link again (see below). |
| Register, Online account card | ”The server unlinked this register (revoked in the panel or invalid token). Link it again.” | Someone removed the register in the dashboard or the link stopped being valid. Link it again. |
| Register | ”Link this register again: the server cannot find its location.” | Sign in again to link. Your sales, products and employees on the tablet are not deleted. |
| Register | ”This register is no longer linked on the server.” | Link again. |
| Register | ”No connection with food.yammbo.com yet” | There has been no connection yet; open the app with internet. |
| Customer, when ordering | ”This restaurant is not receiving orders for now.” | There is no active location that receives orders. Activate it under «Sucursales». |
| Customer, when ordering | ”The restaurant is closed right now.” | Outside the location’s hours. |
How to keep the register online:
- Leave the app open on the linked register, with internet and the screen on.
- When the register is linked, the app keeps a permanent notification (“Receiving orders from food.yammbo.com”). If Android 13 or later hides it, orders still arrive.
- Give the tablet’s battery setting “Allow without restrictions” so orders are not lost with the screen off.
- If the internet drops for a moment it does not matter: the register retries by itself and is never unlinked because of a lack of internet.
Unlink and revoke: Unlink on the register only forgets the link on that tablet. For the server to stop accepting it, also remove the register in the web dashboard, under «Dispositivos» > Remove > «Sí, quitar» (Yes, remove); the tablet loses access immediately.
Web orders that do not ring or cannot be accepted
| Situation | Cause | What to do |
|---|
| The order arrives but the alarm does not ring | «Silencio total» (total silence) on, alarm volume low, or notification permission not granted | The ring uses the alarm channel and cannot be turned off, but with total silence it does not sound. Raise the volume with Raise volume and test with Test order sound (Settings > Location and devices > What this device is for). |
| ”The alarm volume is very low: you will not hear the orders” | Low alarm volume | Tap Raise volume. |
| ”Your role cannot accept or reject orders. Ask someone who can sell or charge.” | Permission missing | Ask someone with permission to sell or charge. |
| ”This device is not the register linked to food.yammbo.com. Accept the order on the linked register.” | Only the linked register accepts or rejects | Accept the order on the linked register. Other tablets see “Web order #(number) is waiting for an answer on the linked register." |
| "(name): the server did not accept the answer: (name). The order is waiting for an answer again.” | The server did not accept your Accept or Reject. Reasons: that employee has no permission, the server does not recognize the order, the order was already in another state, the request was not valid, or there was no connection in time (6 hours offline) | The order goes back to pending and rings again. Check the reason and answer it again, or handle it from Orders in the web dashboard. |
| ”(name): the server does not allow that step for that employee.” / “…does not recognize it for this register.” / “…was in another state; the real state is shown.” / “…the server rejected the step.” | State change not accepted | Check the order’s real state on screen. |
| ”A web order could not be read: check it in the dashboard.” | The register could not read an order | Handle it from Orders in the web dashboard. |
| ”(name) was cancelled.” / “(name) was rejected.” (rings three times) | The customer cancelled, or another register or the dashboard rejected it | The account is voided by itself with the reason. |
| ”(name) ended (name) but already has a payment: settle it in Open orders.” | The order ended but already had a payment | Resolve it by hand in Open orders. |
| ”(name): the website was not told about the void (reason). Let the customer know.” | You voided on the register and the server did not accept the notice | Let the customer know yourself. |
| ”The website will not be told about this void from this device: let the customer know.” | No linked register | Let the customer know yourself. |
Changes that are not saved on the web
When the register is linked, some changes are uploaded to food.yammbo.com. If the web does not accept them, the register downloads again what the web has (the local change is reverted) and shows: “The change to (employee, business data, customer, menu item “X” or payment method “X”) was not saved on the web: (reason)”.
| Reason | What to do |
|---|
| ”another active product on the web already uses that barcode.” | Change the barcode on the register or on the web. |
| ”the category still has products on the web.” | First move or delete the products on the web. |
| ”the product is part of a combo on the web.” | Take it out of the combo on the web. |
| ”the product is not a combo on the web.” / “the web already has that product with the other type (single or combo) and it cannot be changed.” | The type (product or combo) does not change once created. |
| ”other menu items depend on it and wait until you fix it (empty name, too many groups or options, or a price over the limit).” | Fix that item. |
| ”there is a more recent version and that one was kept.” | A later change won (the last change wins). |
| “the person who made it has no permission on the web.” | Give the employee the permission in the web dashboard. |
| ”you cannot give more permissions than the person making the change has.” | Ask an Owner to do it. |
| ”at least one active owner must remain.” | Keep at least one active Owner. |
| ”the web takes up to 100 employees.” | Deactivate employees you no longer use. |
| ”the role does not exist on the web.” | Check the roles in the web dashboard. |
| ”the web account is suspended.” | Contact Yammbo. |
| ”some value is not valid for the web.” | Review the data of the change. |
| ”this register no longer has a location on the web. Link it again.” | Link the register again. |
| ”bank transfers are switched off for this business on Yammbo.” | Contact Yammbo to enable them. |
| ”the web already has the maximum of 10 cards or 10 bank accounts.” | Remove one under «Tienda» (Store) > «Formas de pago» (Payment methods). |
| “the web already has that payment method with another type and it cannot be changed.” | The method’s type does not change once saved. |
| ”the web did not accept it.” | Review the change and try again. |
Other notices:
- “The web currency has different decimals than this register’s, so it was not applied. Prices and charges were not changed.” Use currencies with the same decimals on both sides.
- “To upload the menu, an employee with the Menu permission must also exist on the web.” Permanent notice; it goes away when you create an employee with the Menu permission on the web.
- “The online account takes up to 100 employees.”
Several tablets
| Message | Cause | What to do |
|---|
| ”This register is not connected to Wi-Fi. Connect both tablets to the same Wi-Fi network of the shop.” / “This tablet is not connected to a Wi-Fi network.” | No Wi-Fi | Connect both tablets to the same Wi-Fi. |
| ”The other register runs another version of the app. Update both to the same version.” / “This tablet and the register run different versions of the app.” | Different versions | Update all tablets to the same version (see Install and update). |
| A tablet shows “Offline. Last seen: (name)” with no clear reason | It may be on another version (the app does not say so), turned off or without Wi-Fi | Compare the version in Settings and update; check the Wi-Fi and that the app was not closed by battery saving. |
| ”This tablet runs an older version and cannot sync: remove it from the business and join it again (Join an existing business).” | Very old version | Remove it from the location, update and join it again. |
| ”The code has expired. Start pairing again to get a new one.” / “The code is not correct.” / “The code was entered wrong too many times. Start pairing again to get a new one.” | Expired code (5 minutes), wrong code, or too many attempts | Tap Add device again on the register and use the new code. |
| ”Enter the register’s IP address.” / “Enter a valid port.” | IP or port missing when joining by hand | Type the data the register shows. |
| ”That PIN does not belong to an owner of this register.” / “Type the owner PIN.” / “Type the word BORRAR.” | When erasing and joining | Type an owner’s PIN and the word BORRAR. |
| ”The business accepted this device, but this one could not be prepared. Check the free space and try again.” | Low space on the tablet | Free up space and retry. |
| ”The business accepted this device but did not say which receipt prefix to use. Try again.” | Momentary failure | Retry. |
| ”This device could not be erased. Try again.” | Failure while erasing | Retry. |
| ”That tablet was not found.” / “A register cannot remove itself.” | When removing a device | Remove the tablet from another register. |
| ”This register does not share data with others yet.” | No tablet has joined yet | Add a device. |
| ”This tab was paid (or voided) on another device.” | Another tablet charged or voided that account | Nothing to fix; the register dropped it. |
| ”There are (number) conflicts between registers to review.” | Two tablets changed the same thing offline | See Several tablets. |
| ”The time on T02 differs by N min…” | Clock out of sync | Fix the time in Android. |
| Customer display: “Reconnecting to the register” | The connection was lost | Check the Wi-Fi. |
| Customer display: “This tablet is no longer paired” | The register removed it | Tap Link again. |
| ”Could not reach the register. Make sure both tablets are on the same Wi-Fi network.” / “The register did not answer properly. Try again.” / “Could not start the Wi-Fi connection. Check that you are on the network and try again.” | Network problem when linking a customer display | Check the Wi-Fi and retry. |
| ”The code has expired, or the register has no pairing open.” / “Too many attempts. Ask for a new code on the register.” | Customer display code | Tap Pair a tablet again on the register. |
| ”Turn on ‘Show the sale on the customer screen’ to pair tablets.” | The option is not enabled | Enable it in Settings > Printers and hardware. |
| ”This device is joined to others in the location. To restore, first remove it from the location…” | You try to restore a backup on a joined tablet | See Backups. |
It does not print
The warning looks like “Could not print on (name): (reason)”.
| Reason | What to do |
|---|
| ”Bluetooth is turned off” | Turn on Bluetooth. |
| ”No Bluetooth printer was chosen” | Edit the printer and choose a paired one. If there are none, pair the printer in Android first. |
| ”There are no paired devices.” / “Without the Bluetooth permission the list of paired printers cannot be shown.” | Pair the printer or grant the permission. |
| ”The printer’s IP address is missing” | Type the IP in the setup. |
| ”The port must be between 1 and 65535.” | Use a valid port (the usual one is 9100). |
| ”Permission to use the USB printer is missing” | Tap Ask for permission and accept. |
| ”The USB printer is busy with another app” | Close the other app that uses it. |
| ”The built-in printer did not answer” | Try again with Test. |
| ”No receipt printer is set up on this device.” | Add a printer with Prints receipts checked. |
| The kitchen ticket does not come out | Check that the printer has the station checked and that the product has a Preparation station. A product with no station does not print in the kitchen. |
| Two tickets come out | The register and a kitchen tablet have a printer for the same station; remove one. |
| The drawer does not open: “It was recorded, but no receipt printer has a drawer.” | Check Has a cash drawer on the printer the drawer is connected to. |
Full steps in Printers and hardware.
Selling, tables and charging
| Message | Cause | What to do |
|---|
| ”This device has no open shift. Each register keeps its own shift.” / “Open a shift first to be able to charge.” | You cannot charge without a shift on that tablet | Tap Open a shift to charge; see Shifts and cash drawer. |
| ”There is already an open shift on this device.” / “There is no open shift.” | Shift status | Check the Shift section. |
| ”The menu is empty. Add products in the Menu section.” | There are no products | Add products. |
| ”This product is deactivated.” | The product is inactive | Activate it in the Menu. |
| ”That line was already sent to the kitchen and cannot be changed.” | Line already sent | Use Void sent item, which needs the Void permission or a supervisor. |
| ”There is nothing new to send to the kitchen.” | Everything was already sent | Nothing to do. |
| ”A delivery needs the customer’s name, phone and address.” | Delivery data missing | Fill in Delivery details. |
| ”The discount cannot be greater than the total of the items.” | Discount too large | Lower the amount. |
| ”Remove the discount before splitting the check” | Cannot split with a discount | Remove the discount. |
| ”There are open table checks: charge or close them before turning Tables off.” | You try to turn off Tables with open accounts | Charge or close the accounts. |
| ”That table already has an open check.” / “The table no longer exists or is deactivated.” | Table status | Choose another table. |
| ”Only table checks can be moved, merged or split.” / “Choose at least one item and leave at least one on the original check.” | When moving or splitting | Fix the selection. |
| ”That combination of options gives the item a negative price. Check the menu extras.” | Negative extras larger than the price | Fix the extras. |
| ”The chosen options do not meet the minimum or maximum of the group.” | Modifiers | Choose within the minimum and maximum. |
| ”Non-cash payments cannot exceed what is left to pay.” | Card or transfer for more than what is left | Lower the amount. |
| ”There is still money left to collect.” | The account is not covered | Add payments until Remaining reaches zero. |
| ”This payment method needs a reference.” | The method has Ask for a reference | Type the reference (up to 40 characters). |
| ”One of the payments uses a method that is no longer active. Remove it and add it with another method.” | Deactivated method | Change the method. |
| ”Leave at least one way of charging active” | You want to turn everything off | Keep one active under Payment methods. |
| ”Finish or save the order on screen before opening another one.” | There is an order on screen | Save or finish it. |
Payment links and QR
| Message | Cause | What to do |
|---|
| ”Open this device’s shift before charging by link.” | No shift | Open the shift. |
| ”This session cannot charge.” | Your role lacks Charge | Sign in as an employee who can charge. |
| ”No payment methods are active. Turn them on in Settings, Payments.” | All are off | Turn them on in Settings > Payment methods. |
| ”The provider did not accept the credentials. Check them in Settings, Payments.” | Keys mistyped or wrong | Type them again and use Test connection. Keys are stored per tablet. |
| ”No connection to the provider. It retries on its own.” | No internet or the provider is not responding | Wait or check the internet. |
| ”The provider does not accept this currency for your business.” / “The link charge currency is not one of the business currencies.” | Unsupported currency | Review Charge currency and the business currency. |
| ”The amount is outside what the provider allows.” | Amount too low or too high | Charge another amount or use another method. |
| ”The provider answered something unexpected. See the diagnostics in Settings, Payments.” | Unexpected response | Tap View diagnostics and send it to support. |
| ”The provider rejected the repeated reference. Try again.” / “The provider rejected the operation.” | The provider did not accept it | Try again. |
| ”The payment was not completed. Nothing was charged.” / “The link expired without a payment.” | About 15 minutes went by or it was cancelled | Create a new charge. |
| ”There is a pending link payment” | You closed the charge screen without finishing | Tap Resume and check. |
| ”The link expired, but the provider did not confirm it is closed. The app keeps watching it…” | The provider’s confirmation is missing | Wait; the app checks every 30 seconds. |
| ”Payment received but not recorded” | The provider charged, but it could not be recorded in a sale | Refund the money from the provider’s dashboard and tap Mark as resolved. |
| ”The provider reports a payment that does not match the link amount. It was not recorded. See the diagnostics.” | The amount paid does not match | Nothing was recorded; check the payment in the provider’s dashboard. |
| ”There are N unresolved payments of X. Credentials or test mode cannot be changed, nor can this provider be removed, until they are resolved.” | There are pending payments | Resolve them first. |
| Tap to Pay errors | It is only for Stripe, needs Android 13 or later, NFC and location turned on. It has not been verified on real devices | Check NFC, location and permissions; if it fails, use the link or QR. |
A payment is never recorded unless the provider confirms it. More in Payment links and QR.
Receipts
| Message | Cause | What to do |
|---|
| ”The phone number is not valid. Enter 8 digits or the full number with the country code.” | Wrong phone | Fix it. |
| ”The email is not valid.” | Email mistyped | Fix it. |
| ”There is no app to send the receipt that way.” | The tablet lacks the app (WhatsApp, SMS, email) | Install the app or use another method. |
| ”The receipt to (name) could not be sent: (name)“ | The automatic email failed. Reasons: this register is no longer linked, the server no longer recognizes this register, invalid data such as the email, register connection is turned off, the restaurant account is not active or is suspended, that send already exists with other content, the receipt is too large, 24 hours went by without a connection, or the server rejected it | Tap Open mail app to send it from your email, or Discard. Without internet the receipt waits in a queue and is discarded after 24 hours. |
| ”To send it automatically, link the register in Settings, Location and devices, Online account. For now your mail app will open.” | Register not linked | Link it to send the automatic email. |
| Show receipt QR: “No internet connection.” / “Too many links were created in one hour. Try again in a few minutes.” / “The online account is suspended.” / “This register is unlinked from the online account.” / “The online account does not allow links right now.” / “The link could not be created.” | The receipt link could not be created | Check the internet and the link, or wait a few minutes. The QR is only available on linked registers. |
| ”Sent without the receipt link. (name)“ | The message went out without the link | Generate the QR when there is internet. |
Menu and products
| Message | Cause | What to do |
|---|
| ”Another active product already uses that barcode.” / “No product with code (name)“ | Repeated or non-existent code | Use a different code. |
| ”Enter a valid price, for example 45 or 45.50.” | Wrong price | Fix it. |
| ”The description can have up to 300 characters.” | Description too long | Shorten it. |
| ”The product was saved, but the photo could not be saved. Try again.” | The photo failed | Upload the photo again. |
| ”The product already has sales, so it was deactivated instead of deleted.” | Products with history are not deleted | Nothing to do; it stays inactive. |
| ”This item is a component of a combo. Remove it from the combo before deleting it.” | It is in a combo | Remove it from the combo. |
| ”This category has products. Move them to another one or deactivate the category.” | Category with products | Move the products. |
| ”The schedule is not valid. Use times like 07:00, and close before 06:00 the next day.” | Category schedule | Fix it. |
| ”A new combo is created inactive.” | This is normal | Add the groups and activate it. |
| A combo says Unavailable | A group is left with fewer active components than its minimum | Activate the components. |
| ”Customer joined with the one that already existed on the web: (name)“ | Same phone on the register and on the web | It is only a notice. |
Backups
The Google Drive, file and restore messages are in the table in Backups. The most frequent ones:
| Message | What to do |
|---|
| ”Google Drive needs to be reconnected” / “Backup stopped” | Tap Reconnect. |
| ”Your Google Drive is full. Free some space and try again.” | Free space in Drive. |
| ”This device has no Google Play Services…” | Use Export a copy to a file. |
| ”The backup comes from a newer version of the app. Update the app.” | Update the tablet. |
If none of this solves your case
Write to support@yammbo.com telling us what you expected to happen and the exact message you saw. For a payment link or QR problem, attach the text from View diagnostics (it does not include keys).
