How To Fix AZ008 - Incorrect call sequence of the extractor module

SAP Error Message - Details

• Message type: E = Error

• Message class: AZ - Master data messages for external applications

• Message number: 008

• Message text: Incorrect call sequence of the extractor module

What causes this issue?

Data extractors consist of two parts:
A key extractor for determining the key values of the header table.
A data extractor that returns the data of all supported tables
beginning with the key values.
Both extractors consist of two modules (an initialization module and a
module for determining the next data). An initialization module was not
called in your application.

System Response

Correct your program so that the initialization modules are also
called.

How to fix this error?

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

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message AZ008 - Incorrect call sequence of the extractor module ?

  The SAP error message AZ008, which states "Incorrect call sequence of the extractor module," typically occurs in the context of data extraction processes, particularly when using SAP's Extractors in the context of SAP BW (Business Warehouse) or SAP Data Services. This error indicates that the sequence of calls made to the extractor is not following the expected order, which can lead to issues in data extraction.
  Causes:
  
  Incorrect Initialization: The extractor may not have been initialized properly before being called.
  Improper Sequence of Calls: The sequence of function calls to the extractor is not being followed correctly. For example, the extractor might require a specific order of calls (like initialization, data retrieval, and closing).
  State Management Issues: The extractor might be in an unexpected state due to previous calls that did not complete successfully.
  Configuration Issues: There may be configuration problems with the extractor or the data source that are causing it to behave unexpectedly.
  
  Solutions:
  
  
  Check Call Sequence: Review the documentation for the extractor to ensure that you are following the correct sequence of calls. Typically, this involves:
  
  Initializing the extractor.
  Fetching data.
  Closing the extractor.
  
  
  
  Reinitialize the Extractor: If the extractor is in an incorrect state, reinitialize it before making further calls. This may involve resetting any parameters or states.
  
  
  Review Logs: Check the application logs (transaction SLG1) for any additional error messages or warnings that might provide more context about what went wrong.
  
  
  Test in Isolation: If possible, test the extractor in isolation to ensure that it works correctly without other dependencies or processes interfering.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to the specific extractor you are using. There may be known issues or additional configuration steps required.
  
  
  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 available.
  
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes that might address this specific error or provide guidance on best practices for using extractors.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can share their solutions.
  Training and Documentation: Ensure that your team is trained on the proper use of extractors and that they have access to the latest documentation.
  
  By following these steps, you should be able to diagnose and resolve the AZ008 error effectively.