SAP Message 64643 - Securities account selection for securities account &1 incorrect

Diagnosis
You must assign the position of a securities account group to just onegeneral ledger account. When you have performed a balance sheettransfer, all securities accounts in a securities account group musthave the same account assignment reference. It is possible that youhave not selected all the securities accounts in a securities accountgroup for the balance sheet transfer.

System Response
The balance sheet transfer cannot be executed.

Procedure
Use the "Display securities account groups" function to check thesecurities account groups and change the positions you selected fortransferral, if required.