How To Fix CL821 - Generic material & already created

SAP Error Message - Details

• Message type: E = Error

• Message class: CL - Classification

• Message number: 821

• Message text: Generic material & already created

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CL821 - Generic material & already created ?

  The SAP error message CL821 ("Generic material & already created") typically occurs when you attempt to create a generic material that already exists in the system. This error is common in scenarios involving the creation of materials in the SAP system, particularly when dealing with material master records.
  Cause:
  
  Duplicate Generic Material: The primary cause of this error is that a generic material with the same identifier (such as the material number) already exists in the system.
  Incorrect Input: The user may have entered the same details or identifiers that correspond to an already existing generic material.
  System Configuration: There may be specific configurations or settings in the material master that prevent the creation of duplicate generic materials.
  
  Solution:
  
  
  Check Existing Materials: Before creating a new generic material, check the existing materials in the system to ensure that the material you are trying to create does not already exist. You can do this by using transaction codes like MM03 (Display Material) or MM02 (Change Material).
  
  
  Use Different Identifier: If you need to create a new generic material, consider using a different material number or identifier that does not conflict with existing records.
  
  
  Review Material Type: Ensure that you are using the correct material type for the generic material you are trying to create. Sometimes, the material type may have restrictions on creating duplicates.
  
  
  Consult Documentation: Review SAP documentation or help files related to material master data management to understand the rules and constraints regarding generic materials.
  
  
  Contact SAP Support: If you are unable to resolve the issue, consider reaching out to your SAP support team or consulting SAP Notes for any known issues or patches related to this error.
  
  
  Related Information:
  
  Material Master Data: Understanding how material master data is structured in SAP can help prevent errors. Familiarize yourself with the different views and data fields associated with material creation.
  Transaction Codes: Common transaction codes related to material management include:
  
  MM01: Create Material
  MM02: Change Material
  MM03: Display Material
  MM04: Display Material Changes
  
  
  SAP Notes: Check SAP Notes for any specific notes related to error CL821, as there may be updates or patches that address this issue.
  
  By following these steps, you should be able to identify the cause of the error and take appropriate action to resolve it.