How To Fix /INCMD/MSG409 - Cannot modify assembly group; it is used in interchangeability

SAP Error Message - Details

• Message type: E = Error

• Message class: /INCMD/MSG -

• Message number: 409

• Message text: Cannot modify assembly group; it is used in interchangeability

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /INCMD/MSG409 - Cannot modify assembly group; it is used in interchangeability ?

  The SAP error message /INCMD/MSG409 Cannot modify assembly group; it is used in interchangeability typically occurs when you attempt to modify an assembly group that is currently being used in an interchangeability scenario. Interchangeability in SAP refers to the ability to substitute one component for another within a bill of materials (BOM) or production process.
  
  Cause:
  
  Interchangeability Usage: The assembly group you are trying to modify is linked to an interchangeability group, which means it is being used in a context where its components can be substituted for one another.
  Data Integrity: SAP enforces data integrity rules to prevent changes that could lead to inconsistencies in production planning or execution.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Interchangeability Settings:
  
  Navigate to the interchangeability settings in your SAP system to see if the assembly group is indeed linked to any interchangeability groups.
  You can do this by using transaction codes like CS02 (Change BOM)