How To Fix IST30021 - Customer exit &1 in &2 is not active

IST30021 - Overview

• Message type: E = Error

• Message class: IST30 - Contract A/R + A/P - Paying - Dunning - Disconnect..IST/FICA

• Message number: 021

• Message text: Customer exit &1 in &2 is not active

What causes this issue?

Enhancement (user exit) is not active.

How to fix this error?

Proceed as follows:
Define your own customer project.
Define entries for SAP enhancement &V3& in the &V4& component.
Save your source code in the include program module provided for this
purpose.
Activate your project.
<DS:TRAN.CMOD>Perform function</>

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message IST30021 - Customer exit &1 in &2 is not active ?

  The SAP error message IST30021, which states "Customer exit &1 in &2 is not active," typically occurs when a specific customer exit (a type of enhancement or modification point in SAP) is not activated in the system. Customer exits allow for custom code to be executed at certain points in standard SAP programs, and if they are not activated, the system cannot execute the associated custom logic.
  
  Cause:
  
  Inactive Customer Exit: The specific customer exit referenced in the error message is not activated in the system.
  Missing Implementation: The implementation of the customer exit may not have been created or activated.
  Transport Issues: If the customer exit was recently transported from another system, it may not have been activated in the target system.
  
  
  Solution:
  
  
  Activate the Customer Exit:
  
  Go to transaction code SMOD (for enhancements) or CMOD (for projects).
  In SMOD, enter the name of the customer exit (the first part of the error message, &1).
  Check if the