QuickBooks Windows Sync Error: Only one A/R or A/P 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 PayMaker sync preferences for Unallocated Expenses Account to an Expense type account:

  1. Log in to PayMaker
  2. Click Settings
  3. Under Sync, click Preferences
  4. Click Edit
  5. Change the Unallocated Expenses Account preference to an Expense account
  6. Click Save