How To Fix COM_DIFF_KEY022 - Key type & must be in the customer namespace

SAP Error Message - Details

• Message type: E = Error

• Message class: COM_DIFF_KEY - Messages for Differentiation Key

• Message number: 022

• Message text: Key type & must be in the customer namespace

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message COM_DIFF_KEY022 - Key type & must be in the customer namespace ?

  The SAP error message COM_DIFF_KEY022 indicates that there is an issue with the key type being used in a certain context, specifically that it must be in the customer namespace. This error typically arises in scenarios involving configuration or customization in SAP, particularly when dealing with keys for various objects like customer master data, material master data, or other custom developments.
  Cause:
  The error occurs when:
  
  A key type that is not defined in the customer namespace is being used. In SAP, the customer namespace is typically reserved for custom developments and configurations, while standard SAP objects use the standard namespace.
  The system is expecting a key that adheres to the naming conventions of the customer namespace, but the provided key does not meet these criteria.
  
  Solution:
  To resolve the COM_DIFF_KEY022 error, you can take the following steps:
  
  
  Check Key Type: Verify the key type you are trying to use. Ensure that it is defined in the customer namespace. Customer namespaces usually start with a specific prefix (like Z or Y) followed by a name.
  
  
  Modify Key: If the key type is not in the customer namespace, you may need to create a new key that adheres to the customer namespace conventions. This can involve:
  
  Creating a new key in the appropriate transaction (e.g., SE11 for Data Dictionary objects).
  Ensuring that the new key is properly defined and activated.
  
  
  
  Review Custom Code: If this error arises from custom ABAP code, review the code to ensure that it is using the correct key types. Modify the code to use keys that are defined in the customer namespace.
  
  
  Consult Documentation: Check the SAP documentation or notes related to the specific module or functionality you are working with. There may be specific guidelines or requirements for key types.
  
  
  Testing: After making the necessary changes, test the functionality again to ensure that the error is resolved.
  
  
  Related Information:
  
  Namespaces in SAP: SAP uses namespaces to differentiate between standard SAP objects and customer-specific objects. The standard namespace is reserved for SAP's own development, while the customer namespace (usually starting with 'Z' or 'Y') is for custom developments.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11 (Data Dictionary), SE80 (Object Navigator), and SE37 (Function Module) for checking and modifying key definitions.
  SAP Notes: Search for SAP Notes related to the specific error message or the functionality you are working with. SAP Notes often provide insights into known issues and their resolutions.
  
  If the issue persists after following these steps, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.