QuickBooks Desktop sync error: Only one AR or AP account allowed per transaction
Why the sync error occurs
This error occurs when the Unallocated Expenses Account selected in the sync preferences is something other than an Expense Account.
How to fix the sync error
Update the Key CashFlow sync preferences for Unallocated Expenses Account to an Expense type account:
In Key CashFlow:
- Select Settings
- Select Preferences under Sync
- Select Edit
- Change the Unallocated Expenses Account preference to an Expense account
- Select Save
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