How To Fix 65237 - Cannot change interest calc. meth. affecting conditions with posted flows

65237 - Overview

• Message type: E = Error

• Message class: 65 - Securities class data

• Message number: 237

• Message text: Cannot change interest calc. meth. affecting conditions with posted flows

What causes this issue?

The interest calculation method was changed in the condition header. The
interest calculation method from the condition header is applied in the
case of conditions that do not have an interest calculation method
assigned. Flows have already been posted for such conditions.
Changing the interest calculation method can lead to various negative
effects in cash flow calculation, such as duplicate flows, superfluous
flows, or flows with incorrect amounts. A well-known example is a change
in interest calculation method to or from the method F 360/360 (ISDA).

System Response

Interest calculation method can't be changed.

How to fix this error?

If you want to change interest calculation for individual conditions,
create new conditions with a corresponding Valid-from date and the new
interest calculation method.
&CUSTOMIZING&
You can define when this system message is to be issued in accordance
with your requirements.
You do this in Customizing as follows: Treasury and Risk Management->
Transaction Manager -> General Settings -> Tools -> Configurable
Messages -> <DS:SIMG.OBA5>Change Message Control</>

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 65237 - Cannot change interest calc. meth. affecting conditions with posted flows ?

  The SAP error message 65237, "Cannot change interest calc. meth. affecting conditions with posted flows," typically occurs in the context of financial transactions, particularly when dealing with interest calculation methods in the SAP system. This error indicates that there are posted flows (transactions) that are affected by the interest calculation method you are trying to change.
  
  Cause:
  
  
  Posted Transactions: The primary cause of this error is that there are already posted transactions (flows) that are linked to the interest calculation method you are attempting to change. SAP does not allow changes to the interest calculation method if it would affect these posted transactions, as it could lead to inconsistencies in financial reporting and calculations.
  
  
  Interest Calculation Method: The interest calculation method is often set at the time of contract creation or configuration. If you try to change it after transactions have been posted, the system will prevent this to maintain data integrity.
  
  
  
  Solution:
  
  
  Review Posted