Why the sync error occurs
This error occurs when the Customer/Job: Billable box is checked on an expense line, but an Item hasn't been selected.
How to fix the sync error
The steps to resolve this issue depends on the setting for the expense line:
If this expense line doesn't need to be billable
- Uncheck Billable for that line
If the expense line does need to be billable
- Create the expense as a new Item
- Select Billable for that item
