Thank you for posting here in the Community, @fran holden.
Did you receive an error or a warning stating that the vendor payment transmission failed during the process?
If yes, it happens when sending a direct deposit to one of your contractors that are not marked as a 1099 vendor.
You can use this article for detailed information and on how to resolve this error: Error: The vendor payment transmission failed.
You can also read more about paying independent contractors using direct deposit and the requirements needed.
Let me know if there's anything else that I can assist you with. Leave a comment below, and I'll get back to you.
