How To Fix C9015 - Material-routing assignment already exists in the future

C9015 - Overview

• Message type: E = Error

• Message class: C9 - Object assignments: Routing alternative to object

• Message number: 015

• Message text: Material-routing assignment already exists in the future

What causes this issue?

You want to create a material-routing assignment, however, the
material- routing assignment already exists. The valid-from date for
the material- routing assignment is later than the key date you
entered.

System Response

The validity of the material-routing assignment is not extended.

How to fix this error?

If you want to extend the validity of your material-routing assignment,
proceed as follows:
Enter a key date (or a change number with a key date) that is within
the validity period of the existing material-routing assignment.
Delete the existing material-routing assignment.
Enter the key date from which you want the material-routing assignment
to be valid.
Create the material-routing assignment with this key date.

Error message extract from SAP system. Copyright SAP SE.

C9015 - Details

• The SAP error message C9015, "Material-routing assignment already exists in the future," typically occurs when you are trying to create or modify a routing assignment for a material that already has an existing assignment for a future date. This can happen in various scenarios, such as when you are working with production planning or material management.
  
  Cause:
  
  Existing Future Assignment: The primary cause of this error is that there is already a routing assignment for the specified material that is valid for a future date. SAP prevents overlapping assignments to maintain data integrity.
  Date Overlap: You may be trying to assign a routing that overlaps with an existing assignment's validity period.
  Incorrect Date Entry: The date you are trying to assign may be incorrectly set to a future date where an assignment already exists.
  
  
  Solution:
  
  
  Check Existing Assignments: 
  
  Use transaction codes like CA03 (Display Routing) or C202 (Display Material-Routing Assignment) to check if there is already