How To Fix CRD_REQBUILD401 - No check is possible; requirement of list &1 is not yet generated

SAP Error Message - Details

• Message type: E = Error

• Message class: CRD_REQBUILD - Credentialing: Generate Requirements

• Message number: 401

• Message text: No check is possible; requirement of list &1 is not yet generated

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CRD_REQBUILD401 - No check is possible; requirement of list &1 is not yet generated ?

  The SAP error message CRD_REQBUILD401 indicates that a requirement list for a specific material or product has not yet been generated, which prevents the system from performing a check related to that requirement. This error typically occurs in the context of production planning, material requirements planning (MRP), or similar processes where requirement lists are essential for planning and scheduling.
  Cause:
  
  Requirement List Not Generated: The primary cause of this error is that the requirement list for the specified material (indicated by &1 in the error message) has not been created. This can happen if the planning run has not been executed or if there are issues in the planning configuration.
  Incorrect Configuration: There may be issues with the configuration of the MRP settings or the material master data that prevent the generation of the requirement list.
  Missing Data: The material may not have the necessary data set up in the system, such as MRP type, lot size, or other relevant parameters.
  
  Solution:
  
  Run MRP: Ensure that the MRP run has been executed for the relevant materials. You can do this by using transaction code MD01 (for total planning) or MD02 (for single-item planning).
  Check Material Master Data: Verify that the material master data is correctly configured. Check the MRP views to ensure that all necessary fields are filled out, including MRP type, lot size, and planning parameters.
  Check Requirement List Generation: If the requirement list is supposed to be generated automatically, check the settings in the MRP configuration to ensure that they are correct.
  Review Planning Parameters: Ensure that the planning parameters are set correctly in the MRP settings. This includes checking the planning horizon and other relevant settings.
  Check for Errors in Previous Runs: If there were errors in previous MRP runs, they may have prevented the requirement list from being generated. Review the logs for any issues that need to be addressed.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MD01, MD02, MD04 (Stock/Requirements List), and MD05 (MRP List).
  SAP Notes: Check for any SAP Notes related to this error message for additional guidance or patches that may address known issues.
  Documentation: Review SAP documentation on MRP and requirement lists to understand the processes involved and best practices for configuration.
  
  By following these steps, you should be able to resolve the CRD_REQBUILD401 error and ensure that the requirement list is generated correctly for the specified material.