The Retentions Receivable report lists all the customers that owe you for
retention as of a given date.
Choose Reports > Customers & Receivables > Customer Balance Summary.
Click the Customize Report button.
In the Report Date Range field, enter the date range you're interested
in, for example, a specific month or year.
Click the Filters tab.
In the Filters tab window, select Account in the Filter scroll box.
Click the Account drop-down arrow and select your Retentions Receivable account.
Handle customer retention or