How To Fix CRD_REQBUILD151 - Invalid call sequence in method &1 of requirements determination

SAP Error Message - Details

• Message type: E = Error

• Message class: CRD_REQBUILD - Credentialing: Generate Requirements

• Message number: 151

• Message text: Invalid call sequence in method &1 of requirements determination

What causes this issue?

The <DS:GLOS.D5E1D85D66DDD3119B4F0060B0671ACC>determination</> of
<DS:GLOS.44A21B945F2E4D36E10000000A114B08>requirements</> takes place as
a series of defined steps in which the logic of the individual steps is
interchangeable to a certain extent. Nevertheless, all the steps have to
be performed in order to avoid inconsistencies.
In the current case, the system is supposed to execute method &V1&
without first executing method &V2& .

System Response

The program is canceled.

How to fix this error?

This exception should only occur if the SAP standard methods contain an
error or have been incorrectly replaced by customer methods.
Determine which of these two situations has occurred.
In the first case, contact SAP support.
In the second case, ask your system administrator to correct the local
change of your installation.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CRD_REQBUILD151 - Invalid call sequence in method &1 of requirements determination ?

  The SAP error message CRD_REQBUILD151 indicates an "Invalid call sequence in method &1 of requirements determination." This error typically occurs during the requirements determination process in SAP, which is part of the material planning and production planning modules. The error suggests that there is an issue with the sequence of method calls in the requirements determination logic.
  Causes:
  
  Incorrect Configuration: The configuration settings for the requirements determination process may be incorrect or incomplete.
  Custom Code Issues: If there are custom enhancements or modifications in the requirements determination logic, they may not be following the expected sequence of method calls.
  Data Issues: Inconsistent or missing data in the master data (like material master, BOM, or routing) can lead to this error.
  System Bugs: There may be bugs in the SAP system or specific patches that need to be applied.
  
  Solutions:
  
  Check Configuration: Review the configuration settings related to requirements determination in the SAP system. Ensure that all necessary settings are correctly defined.
  Review Custom Code: If there are any custom enhancements, review the code to ensure that the method calls are made in the correct sequence. Debugging the custom code may help identify the issue.
  Data Validation: Validate the master data related to the materials involved in the requirements determination process. Ensure that all necessary data is complete and consistent.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes or patches that address this specific error. Applying the latest patches may resolve the issue.
  Debugging: If you have access to the development environment, you can use the debugger to trace the method calls and identify where the invalid sequence occurs.
  Consult Documentation: Review the SAP documentation related to requirements determination for any additional insights or troubleshooting steps.
  
  Related Information:
  
  Transaction Codes: You may want to use transaction codes like MD04 (Stock/Requirements List) or MD61 (Create Planned Independent Requirements) to analyze the requirements and stock situation.
  SAP Community: Engaging with the SAP Community forums can provide insights from other users who may have encountered similar issues.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, especially if it appears to be a bug or requires deeper investigation.
  
  By following these steps, you should be able to identify the root cause of the CRD_REQBUILD151 error and implement a suitable solution.