How To Fix B1809 - BAPI (&1, &2) is self-dependent

SAP Error Message - Details

• Message type: E = Error

• Message class: B1 - ALE group messages

• Message number: 809

• Message text: BAPI (&1, &2) is self-dependent

What causes this issue?

An error has been found in the assignment of the BAPI to the referenced
BAPI. The BAPI (&v1&, &v2&) has been defined as a dependent BAPI and as
a referenced BAPI.

System Response

This results in an endless dependendency for the receiver
determination.

How to fix this error?

Correct the assignment in ALE Customizing in the Transaction BD47.

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 B1809 - BAPI (&1, &2) is self-dependent ?

  The SAP error message B1809 indicates that a BAPI (Business Application Programming Interface) is self-dependent, meaning that the BAPI is trying to call itself, which leads to a recursive situation that is not allowed. This typically occurs when a BAPI is designed in such a way that it inadvertently references itself, either directly or indirectly.
  Cause:
  
  Self-Referencing Logic: The BAPI may have been programmed to call itself as part of its processing logic.
  Incorrect Configuration: The BAPI might be incorrectly configured or designed, leading to unintended self-references.
  Circular Dependencies: There may be circular dependencies in the BAPI calls, where one BAPI calls another that eventually calls the first BAPI again.
  
  Solution:
  
  Review BAPI Logic: Check the implementation of the BAPI to ensure that it does not call itself. Look for any direct or indirect calls that may lead to recursion.
  Refactor Code: If the BAPI needs to perform similar operations, consider refactoring the code to separate the logic into different methods or functions that do not involve calling the BAPI itself.
  Check Dependencies: Analyze the dependencies between BAPIs to ensure that there are no circular references. If necessary, redesign the BAPI interactions to avoid such situations.
  Testing: After making changes, thoroughly test the BAPI to ensure that it functions correctly without self-referencing.
  
  Related Information:
  
  BAPI Documentation: Review the official SAP documentation for BAPIs to understand best practices and guidelines for designing BAPIs.
  SAP Notes: Check SAP Notes for any known issues or patches related to the specific BAPI you are working with.
  Debugging: Use the SAP debugger to trace the execution of the BAPI and identify where the self-dependency is occurring.
  Community Forums: Engage with SAP community forums or support channels for additional insights or similar experiences from other users.
  
  By addressing the self-dependency issue in the BAPI, you can resolve the B1809 error and ensure that the BAPI operates as intended.