How To Fix CMT2050 - Definition number of predecessor and successor must be identical

CMT2050 - Overview

• Message type: E = Error

• Message class: CMT2 - Add-On Version: Message Class in CM Environment

• Message number: 050

• Message text: Definition number of predecessor and successor must be identical

What causes this issue?

You want to create a successor via an API. Different numbers were
copied for the configuration definition for predecessors and
successors. This is not permissible.

System Response

The successor cannot be created.

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.

CMT2050 - Details

• The SAP error message CMT2050, which states "Definition number of predecessor and successor must be identical," typically occurs in the context of project management or production planning within SAP. This error indicates that there is a mismatch in the definition numbers of predecessor and successor activities or tasks in a network or project structure.
  
  Cause:
  
  
  Mismatch in Definition Numbers: The most common cause of this error is that the predecessor and successor activities have been defined with different definition numbers. In SAP, each activity or task in a project network is assigned a unique definition number, and these must match for the predecessor-successor relationship to be valid.
  
  
  Incorrect Configuration: There may be an issue with how the project or network has been configured, leading to inconsistencies in the definition numbers.
  
  
  Data Entry Errors: Manual data entry errors can also lead to this issue, where the wrong definition number is assigned to either the predecessor