The user is seeing the below error message on an invoice after clicking publish.
Contact does not exist in Sage
Sage Accounting/SBCA users publishing Purchases/Sales invoices.
This issue is most typically caused by a supplier/customer account having previously been manually created by the user in AutoEntry, whilst not having been created in Sage.
To clear this error, you will need to do the following:
Unpublish the affected invoice(s).
Go to Sage, and ensure that the supplier/customer account exists there exactly the same as it is appearing on the AutoEntry invoice.
If it does not exist in Sage, create it and then re-sync your company data on AutoEntry.
Once the supplier/customer has synced through from Sage to AutoEntry, publish the affected invoice(s) again.