SAP Message RQ061 - Check advice & in CC & if conversion is also required

Diagnosis
You selected a payment advice for conversion. This payment advice,however, refers to another payment advice that has not been selectedfor conversion. The connection between these two payment advicesresults from the function "Deposit/Loan Management: Analysis - Posting"(program RFFDIS70). This means that one of the payment advices is thedeposit advice and the other is the interest advice belonging to it.
Using the ID number, check whether the other payment advice must not beconverted.