How To Fix CL751 - Log-relevant flag & is not set - call CALO_INIT_API !

SAP Error Message - Details

• Message type: E = Error

• Message class: CL - Classification

• Message number: 751

• Message text: Log-relevant flag & is not set - call CALO_INIT_API !

What causes this issue?

The API for initializing - CALO_INIT_API - has not been called.

System Response

CALO_INIT_API must be called before function APIs.

How to fix this error?

When you use APIs, module CALO_INIT_API must be called first. This API
sets certain required control parameters and initial values.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CL751 - Log-relevant flag & is not set - call CALO_INIT_API ! ?

  The SAP error message "CL751 Log-relevant flag & is not set - call CALO_INIT_API !" typically indicates that there is an issue with the logging mechanism in the SAP system, particularly related to the logging of certain operations or transactions. This error is often encountered in the context of the SAP Customer Activity Repository (CAR) or when working with the SAP Advanced Planning and Optimization (APO) module.
  Cause:
  
  Log-Relevant Flag Not Set: The error suggests that a log-relevant flag is not set for a particular operation or transaction. This flag is necessary for the system to track and log relevant activities.
  Initialization Issue: The error message also indicates that the CALO_INIT_API function module needs to be called to initialize the logging mechanism properly.
  Configuration Issues: There may be configuration issues in the system that prevent the logging from being set up correctly.
  Missing Authorizations: Sometimes, the user executing the transaction may not have the necessary authorizations to set the log-relevant flag.
  
  Solution:
  
  Call CALO_INIT_API: As the error message suggests, you should call the CALO_INIT_API function module. This can often be done in a custom program or transaction where the logging is required.
  Check Configuration: Review the configuration settings related to logging in the relevant SAP module (e.g., CAR, APO). Ensure that all necessary settings are correctly configured.
  Set Log-Relevant Flag: If you have access to the relevant transaction or program, ensure that the log-relevant flag is set appropriately before executing the operation.
  User Authorizations: Verify that the user has the necessary authorizations to perform the operation and to set the log-relevant flag.
  Consult Documentation: Refer to SAP documentation or notes related to the specific module you are working with for any additional troubleshooting steps or configuration settings.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Transaction Codes: Familiarize yourself with relevant transaction codes that may help in troubleshooting, such as SE37 for function modules, SE80 for object navigator, or SM37 for job monitoring.
  Debugging: If you have access to debugging tools, you can debug the program or transaction to see where the log-relevant flag is being set and why it might not be set in your case.
  
  If the issue persists after trying the above solutions, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.