Desktop warnings: customers, suppliers and purchase invoices
What the warnings on the desktop customer, debt / payment, supplier and purchase invoice screens mean and how to fix them.
This page lists the warnings and error messages that appear in the BenimPOS desktop app on customer and supplier cards, when adding a debt or payment, and on purchase invoices. Under each message you'll find what it means, why it appears and what to do. Search the page for the first few words of the message on your screen (Ctrl+F). Parts shown as <…> in the messages appear on screen as a product name, amount or error detail.
Adding and editing customers
Details: Adding customers.
"You have already saved a customer with this name. Please choose a new customer name."
"Existing customer!"
What it means: You can't create a second customer with the same customer name (label).
Why it appears: The name you typed is already used by a saved customer (upper / lower case doesn't matter).
What to do: Use the saved customer or make the name distinct (e.g. AHMET YILMAZ - MERKEZ).
"You must enter the name of the customer you want to add."
"Type the name of the customer you want to add in the search box."
What it means: No name was entered for the new customer.
What to do: Fill in the CUSTOMER NAME (LABEL) field. In the Select customer window on the sales screen, first type the name in the search box, then press + New customer.
"Customer could not be added: <error detail>"
"An error occurred while adding the customer."
What it means: The new customer could not be saved.
Why it appears: A problem occurred while writing to the database.
What to do: Wait a few seconds and try again; if that does not help, close and reopen the app. If the problem continues, write to our WhatsApp support line (weekdays 09:00–18:00) with a screenshot of the message.
"An error occurred during the update."
What it means: The change to the customer details was not saved.
Why it appears: The record was not found or the database did not respond.
What to do: Close and reopen the customer card and press Save again.
"The customer's balance could not be read; nothing was done. Please try again."
What it means: The balance check before deleting the customer or resetting the account could not be done; nothing was changed.
Why it appears: These actions require the debt and credit to be zero; the balance could not be read at that moment.
What to do: Close and reopen the card and try again. If the remaining debt isn't zero, add a payment to bring it to zero first. Details: Customer debt and closing the account.
Customer payments, debt and credit
"You must select a payment type."
What it means: No payment type was selected when adding a payment.
What to do: Select the PAYMENT TYPE and save again.
"You must enter the payment amount."
"You must enter the credit sale amount.."
What it means: The payment or credit debt amount is empty.
What to do: Fill in the AMOUNT field.
"Please enter a valid amount greater than zero."
"Please enter a valid amount."
What it means: The amount entered could not be read, or it is zero / negative.
Why it appears: The amount may contain letters, spaces or more than one separator.
What to do: Type the amount using digits only; use a single comma for the decimals (e.g. 250,50).
"Select a valid credit type."
What it means: No TYPE was selected on the Add Credit / Payment tab.
What to do: Choose Add credit for customer or Payment made to customer.
"The debt could not be recorded and nothing was changed. Please try again."
What it means: The credit debt could not be added; the balance did not change.
Why it appears: A problem occurred while writing to the database.
What to do: Wait a few seconds and try again; if that does not help, close and reopen the app. If the problem continues, write to our WhatsApp support line (weekdays 09:00–18:00) with a screenshot of the message.
"An error occurred during the operation. "
"An error occurred while saving the payment. Please try again."
What it means: The payment / credit could not be recorded.
Why it appears: A problem occurred while writing to the database.
What to do: Check the transactions list on the customer card; if the record isn't there, add it again (check first so you don't enter the same payment twice).
"An error occurred while cancelling the credit."
"An error occurred while cancelling the payment."
What it means: The credit or payment could not be cancelled.
Why it appears: The record may already have been cancelled, or the database did not respond.
What to do: Close and reopen the card; if the record is still on the list, cancel it again.
"Select the customer to add the payment to from the list on the left."
What it means: No customer was selected in the Add payment to customer window on the sales screen.
What to do: Select the customer from the list on the left, enter the AMOUNT PAID and PAYMENT TYPE and press Save payment.
Suppliers
Details: Adding suppliers and Supplier payments and debt.
"You have already added this supplier."
"Supplier already added!"
What it means: A supplier with the same name already exists.
What to do: Use the saved supplier or change the name.
"You must enter a valid supplier name."
"Invalid supplier name!"
What it means: The supplier name is empty.
What to do: Type the supplier name and save.
"Enter a valid amount."
What it means: The debt / payment amount could not be read.
What to do: Type the amount using digits only, with a single comma for the decimals.
"An error occurred while adding the debt / payment."
What it means: The supplier debt or payment was not saved.
Why it appears: A problem occurred while writing to the database.
What to do: Wait a few seconds and try again; if that does not help, close and reopen the app. If the problem continues, write to our WhatsApp support line (weekdays 09:00–18:00) with a screenshot of the message.
"An error occurred while cancelling the supplier debt/payment."
What it means: The transaction could not be cancelled.
Why it appears: The record may already have been cancelled.
What to do: Close and reopen the supplier card and check the transactions list.
"Are you sure you want to delete the supplier? This cannot be undone. The supplier's debts and payments will be deleted and any invoices will be updated to 'No supplier'"
What it means: This is the confirmation question before deleting a supplier.
What to do: If you answer Yes, the supplier's debt / payment transactions are deleted; purchase invoices are not deleted, and their supplier field becomes “No supplier”. If you're not sure, answer No.
"An error occurred during the operation and nothing was changed. Please try again."
What it means: Deleting the supplier or changing the purchase invoice could not be completed; no records changed.
Why it appears: A problem occurred while writing to the database.
What to do: Wait a few seconds and try again; if that does not help, close and reopen the app. If the problem continues, write to our WhatsApp support line (weekdays 09:00–18:00) with a screenshot of the message.
"An error occurred while adding the supplier."
"An error occurred while updating the supplier details."
What it means: The supplier could not be saved or its details could not be updated.
Why it appears: A problem occurred while writing to the database.
What to do: Wait a few seconds and try again; if that does not help, close and reopen the app. If the problem continues, write to our WhatsApp support line (weekdays 09:00–18:00) with a screenshot of the message.
Purchase invoices
Details: Purchase invoices.
"The invoice number and invoice date fields can't be left empty."
What it means: INVOICE NO or INVOICE DATE is empty.
What to do: Fill in both fields and press Save Invoice.
"You entered an invalid supplier."
"Invalid supplier!"
What it means: A name that isn't saved was typed in the supplier field.
What to do: Pick the supplier from the list; if it's a new supplier, add it first under Suppliers.
"An invoice with this invoice number, date and supplier has already been entered."
What it means: You tried to save the same invoice a second time; nothing was saved.
Why it appears: An invoice with the same supplier, invoice number and date already exists.
What to do: Open and check the invoice under Purchase Invoices › Your purchase invoices; if products are missing, add them with + Add Product.
"The purchase invoice could not be saved and nothing was recorded. Please try again."
What it means: The invoice was not saved; stock and the supplier balance did not change.
Why it appears: A problem occurred while writing to the database.
What to do: If your product list is still on the screen, press Save Invoice again. Wait a few seconds and try again; if that does not help, close and reopen the app. If the problem continues, write to our WhatsApp support line (weekdays 09:00–18:00) with a screenshot of the message.
"Saving failed because no product could be saved. The product quantity or unit purchase value may be wrong, or there may be a connection problem."
What it means: None of the product lines on the invoice could be saved; the invoice was not created.
Why it appears: The quantity or purchase price on the lines is empty / wrong.
What to do: Check that QUANTITY and PURCHASE PRICE on each line are numbers and save again.
"You can't leave the product barcode, quantity or unit purchase price field empty."
What it means: A required field is empty while editing a product line on the invoice.
What to do: Fill in the barcode, quantity and unit purchase price.
"You can't return more than the quantity on the invoice."
What it means: The quantity returned to the supplier is greater than the quantity on the invoice.
What to do: Enter a quantity equal to or less than the quantity on the invoice.
"An error occurred while adding products to the invoice; no lines were saved: <error detail>"
"New products could not be added to the invoice."
What it means: New products could not be added to the saved invoice; the invoice did not change.
Why it appears: The lines contain wrong values or the database did not respond.
What to do: Check the quantities and purchase prices and try again.
"No saved invoice found."
"No saved supplier found."
What it means: The invoice you want to open, or the supplier you chose in the filter, was not found on this computer.
Why it appears: The record was deleted, or it was added on another device and hasn't synced yet.
What to do: Refresh the list; if it was entered on another device, press Sync now on the home page and try again.
"An error occurred while cancelling the return from the invoice.."
"An error occurred while returning the product from the invoice.."
"An error occurred while cancelling the product from the invoice.."
"An error occurred while updating the product on the invoice.."
What it means: The action you took on the invoice line (return, cancel, update) was not saved.
Why it appears: The line was changed earlier or the database did not respond.
What to do: Close and reopen the invoice, check the current state of the line and try again if needed.
"You can't make changes to this product because you cancelled it."
What it means: You tried to edit or return a line that was cancelled from the invoice.
What to do: A cancelled line can't be changed. If the product really is on the invoice, add it again with + Add Product.
If you can't find your message here or the suggested steps didn't solve the problem, send a screenshot of the message, your registered email address and the version number at the bottom right of the home page to our WhatsApp support line. If a remote connection is needed, our team will ask you for your Alpemix connection details.