We just converted an IM.mdb from GP 10 to GP 2010. The RM integration has been used for years. Now it brings in the transactions into an RM batch but not the credit side of the distribution. Nothing has changed except the GP version. The IM is setup exactly as the sample RM Transaction format. What has changed?
Could you take a look at your integration and make sure the Distribution node is completely filled out? I've had this happen a few times after an upgrade where certain mappings disappeared. Also, take a look at the top Receivables Transaction node and check if you have something in the Batch ID. Also, where is your source query coming from (excel, csv, sql, etc)?