QuickBooks Online Sync Error: String length specified does not match the supported length. Min:0 Max:21 supported. Supplied length:XX
Why the Sync Error occurs
This error occurs when a vendor credit in Bill.com is attempting to sync to QuickBooks Online (QBO), but the reference number is greater than 21 characters.
How to Fix the Sync Error
- In Bill.com, edit the vendor credit reference number to be fewer than 21 characters
- Sync again