What to do if you see the message "Business Validation Error: You can't use a Creditors account on the detail portion of a Bill."

The cause:

The category that's been assigned to an invoice in Pleo is not compatible with the supplier in Quickbooks.

The solution:

1. In Quickbooks, please check into how the supplier account is set up (and which accounts/categories would be appropriate).

2. In Pleo, change the selected account/category by going to the Export page, clicking on the affected invoice, and changing the account/category: