Let us know in the chat and we will investigate it for you. Please mention the invoice number in your message.Related ArticlesFor this invoice number, there already exists a sales booking.Invoice with ID x and invoice number x not found in TeamleaderMoneybird error: Technical details: HTTP code: 422 Payload: Body: {"error":{"customer_id":["is already in use"]}}My integration is giving an error message. How can I solve this?My integration is not working. What should I do?