Thank you for reaching out to us here in the Community, bozan. Based on the details you’ve provided, it seems the agency name might have been set up as both a Customer and Supplier in QuickBooks, which is likely causing an error when creating invoices.
This happens because QuickBooks does not allow the same name to be used in multiple lists to prevent duplicate entries. To resolve this, review both the Customer and Supplier profiles and rename one of them to eliminate duplication.
Here's how:
- On the left menu, go to My Apps, then select Customer Hub.
- Click Customers and check if the agency name is listed there.
- Then, go to Suppliers and confirm if the same agency name exists in this list.
- If the name is listed in both areas, rename one of the profiles (e.g., "Agency Name – Customer" or "Agency Name – Vendor") to differentiate them.
Once you’ve renamed one of the profiles, QuickBooks will no longer recognize it as a duplicate, and you’ll be able to create invoices without any issues.
If you have more concerns, don't hesitate to reply here in this thread. We're here to help.