How To Fix CMT036 - Keys can not be changed

SAP Error Message - Details

• Message type: E = Error

• Message class: CMT - CM: Message Class in CM Environment

• Message number: 036

• Message text: Keys can not be changed

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Error message extract from SAP system. Copyright SAP SE.

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• What is the cause and solution for SAP error message CMT036 - Keys can not be changed ?

  The SAP error message CMT036 ("Keys cannot be changed") typically occurs in the context of configuration or master data management within SAP systems, particularly when dealing with certain types of data records that have key fields that are not allowed to be modified after they have been created.
  
  Cause:
  
  Immutable Key Fields: The error arises when there is an attempt to change a key field of a master data record (like a material, vendor, or customer) that is defined as immutable. Key fields are often used to uniquely identify records, and changing them can lead to data integrity issues.
  Data Consistency: SAP enforces strict data consistency rules, and changing key fields can disrupt relationships with other data records, leading to potential inconsistencies.
  Transaction Type: The error may also occur if the transaction type being used does not allow for changes to key fields.
  
  
  Solution:
  
  Review Key Fields: Check the specific key fields you are trying to