How To Fix CRD_REQBUILD420 - Error while checking requirement combination &1(ID &2)

SAP Error Message - Details

• Message type: E = Error

• Message class: CRD_REQBUILD - Credentialing: Generate Requirements

• Message number: 420

• Message text: Error while checking requirement combination &1(ID &2)

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 CRD_REQBUILD420 - Error while checking requirement combination &1(ID &2) ?

  The SAP error message CRD_REQBUILD420 typically occurs in the context of the SAP Advanced Planning and Optimization (APO) module, particularly when dealing with demand planning or supply network planning. This error indicates that there is an issue with checking the requirement combination for a specific ID.
  Cause:
  The error can be caused by several factors, including:
  
  
  Data Inconsistencies: There may be inconsistencies in the master data or transaction data that are being used for planning. This could include missing or incorrect entries in the material master, location master, or other related data.
  
  
  Configuration Issues: The planning configuration may not be set up correctly, leading to issues when the system tries to evaluate requirement combinations.
  
  
  Missing Requirements: The system may be trying to evaluate a requirement combination that does not exist or is not properly defined.
  
  
  Versioning Issues: If you are working with different versions of planning data, there may be conflicts or issues with how the data is being combined.
  
  
  Solution:
  To resolve the CRD_REQBUILD420 error, you can take the following steps:
  
  
  Check Master Data: Verify that all relevant master data (material, location, etc.) is correctly maintained and does not have any inconsistencies. Ensure that all required fields are filled out.
  
  
  Review Planning Configuration: Check the configuration settings in the APO system to ensure that they are set up correctly for the requirements you are trying to evaluate.
  
  
  Analyze Requirement Combinations: Look into the specific requirement combination that is causing the error. Ensure that it is defined correctly and that all necessary requirements are present.
  
  
  Check for Missing Data: Ensure that there are no missing requirements or data entries that could be causing the issue.
  
  
  Debugging: If you have access to debugging tools, you can analyze the program logic to identify where the error is occurring and what specific data is causing the issue.
  
  
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error message. There may be patches or updates that can resolve the issue.
  
  
  Contact SAP Support: If the issue persists after trying the above steps, consider reaching out to SAP Support for further assistance.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes in SAP APO, such as /SAPAPO/SDP94 for demand planning or /SAPAPO/MC90 for planning book maintenance.
  Documentation: Review SAP documentation related to demand planning and requirement management for additional insights and best practices.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify and resolve the underlying cause of the CRD_REQBUILD420 error in your SAP system.