How To Fix TR_AUSL243 - Successor &1 cannot be used: predecessor is &2 instead of &3

SAP Error Message - Details

• Message type: E = Error

• Message class: TR_AUSL - Software Delivery Composer Messages

• Message number: 243

• Message text: Successor &1 cannot be used: predecessor is &2 instead of &3

What causes this issue?

Delivery request &V1& cannot be used as a direct
<DS:DE.DLV_FOLWTK>successor</> for the delivery request &V3& that is to
be registered, since the delivery request &V2& has already been
assigned to delivery request &V1& as a direct predecessor.

System Response

The action was terminated.You are given the option of correcting your
entry.

How to fix this error?

Check the successor request you entered and correct it.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message TR_AUSL243 - Successor &1 cannot be used: predecessor is &2 instead of &3 ?

  The SAP error message TR_AUSL243 indicates that there is an issue with the relationship between a successor and a predecessor in a task or project. Specifically, the message states that the successor (identified by &1) cannot be used because the predecessor is not what is expected. Instead of the expected predecessor (&3), the system has found a different predecessor (&2).
  Cause:
  This error typically arises in the context of project management or task scheduling within SAP, particularly in the use of the Project System (PS) module or similar functionalities. The causes can include:
  
  Incorrect Task Relationships: The successor task is linked to a predecessor that does not match the expected predecessor defined in the project or task configuration.
  Data Entry Errors: Manual entry errors when defining task relationships can lead to mismatches.
  Changes in Project Structure: If the project structure has been modified (e.g., tasks added, removed, or reordered), it may lead to inconsistencies in the predecessor-successor relationships.
  Configuration Issues: There may be configuration settings in the project management module that are not aligned with the current project structure.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Task Relationships:
  
  Navigate to the project or task in question and review the predecessor-successor relationships.
  Ensure that the predecessor for the successor task is correctly defined as expected.
  
  
  
  Correct the Predecessor:
  
  If the predecessor is incorrect, update the task relationship to reflect the correct predecessor (i.e., change it to &3).
  
  
  
  Review Project Structure:
  
  If there have been recent changes to the project structure, ensure that all tasks are correctly linked and that there are no orphaned tasks or incorrect links.
  
  
  
  Data Validation:
  
  Validate the data entries for the tasks involved to ensure that there are no typographical errors or misconfigurations.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for guidance on managing task relationships and resolving common errors.
  
  
  
  Seek Help from SAP Support:
  
  If the issue persists and you cannot identify the cause, consider reaching out to SAP support for assistance. They may provide insights based on the specific configuration and version of your SAP system.
  
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like CJ20N (Project Builder) or CJ02 (Change Project) to view and edit project tasks and their relationships.
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide patches related to this error message.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify and correct the issue causing the TR_AUSL243 error message in your SAP system.