SAP Message /IBS/RB513 - Error calculating the value adjustment proposals. RBD account: &1

Diagnosis
When the volume adjustment was created or a proposal was processed, anerror occurred while the position changes were being calculated..
The data of the relevant source system contracts is available unchangedin the IAS-GATE data pool. RBD account "&V1&" was not updated.

Procedure
Contact your SAP application consultant or system administrator.