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

TR_AUSL243 - Overview

• 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.

TR_AUSL243 - Details

• 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