Make change in Reader Query as shown with the below code.
Code Block
select {!.} from Account where AVSFQB__Quickbooks_Id__c = '' and Parent.Name!=''
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Similary change AccountToCustomer reader query awith the below code.
Code Block
select {!.} from Account where AVSFQB__Quickbooks_Id__c = '' and Parent.Name =''
Once you are done with all the above mentioned changes, run the sync and data will be integrated into Quickbooks with their respective hierarchies in place as shown below.
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This concludes Account hierarchy mappings for the data-flow from Salesforce into Quickbooks.