Why the Sync Error occurs
This error occurs because the Intacct Bill Summary Posting preference is set to User Specified. It must be set to Daily.
How to Fix the Sync Error
To resolve the issue, update the settings in Intacct:
- In the Intacct account, go to Accounts Payable > Configure Accounts Payable
- In the Bill Summary Posting drop-down menu, select Daily
- Click Save
- Sync again