How To Fix /SMB/TASK001 - Illegal call: Building Block or Sequence Number is initial.

SAP Error Message - Details

• Message type: E = Error

• Message class: /SMB/TASK -

• Message number: 001

• Message text: Illegal call: Building Block or Sequence Number is initial.

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 /SMB/TASK001 - Illegal call: Building Block or Sequence Number is initial. ?

  The SAP error message /SMB/TASK001 Illegal call: Building Block or Sequence Number is initial typically occurs in the context of the SAP Business ByDesign or SAP S/4HANA systems when there is an issue with the configuration or execution of a task or process that relies on specific building blocks or sequence numbers.
  Cause:
  
  Missing Configuration: The error often indicates that a required building block or sequence number has not been defined or initialized in the system.
  Incorrect Sequence: The process may be trying to execute a task that requires a specific sequence number that has not been set or is not available.
  Data Integrity Issues: There may be issues with the data integrity where the expected values are not present, leading to the system being unable to proceed with the task.
  Custom Development: If there are custom developments or enhancements in the system, they may not be handling the initialization of building blocks or sequence numbers correctly.
  
  Solution:
  
  Check Configuration: Review the configuration settings related to the task or process that is generating the error. Ensure that all necessary building blocks and sequence numbers are properly defined and initialized.
  Initialize Required Values: If the building block or sequence number is indeed required, ensure that it is initialized before the task is called. This may involve setting up the necessary data in the system.
  Review Custom Code: If there are custom developments, review the code to ensure that it correctly initializes and handles building blocks and sequence numbers. Debugging the custom code may help identify where the issue lies.
  Consult Documentation: Refer to SAP documentation or notes related to the specific module or functionality you are working with. There may be specific guidelines or prerequisites that need to be followed.
  Contact SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support for assistance. They may have additional insights or patches that can resolve the issue.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error message or provide guidance on configuration.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed. Other users may have encountered the same error and found solutions.
  System Logs: Review system logs for additional error messages or warnings that may provide more context about the issue.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.