This means your GL is not set up correctly and Account field is missing in the service revenue account.
1. Open the invoice that is mentioned in error.
2. Navigate to GL entries tab.
3. Click at service revenue account.
4. Most likely the Account field is blank. This is the root cause of the issue.
The “Account” field on the System > Setup Tables > GL Accounts table in Manage must be consistent with the “Name” field on the Company > Chart of Accounts > Account screen in QuickBooks Online.
Note: the fields are case-sensitive and values should match exactly.
Note: Accounts will not be automatically created in QuickBooks Online if they are not found. An error message will be raised when attempting to push transactions.
It is important to note that any time that you make changes to your GL Account Mapping you need to open and then close any closed invoices that use that mapping for it to change. Once you have done that you can then successfully run the batch in QuickBooks Online to show the new account.