How To Fix /PLMI/ECN_SP004 - Cannot collapse object type task list for change number &1

/PLMI/ECN_SP004 - Overview

• Message type: E = Error

• Message class: /PLMI/ECN_SP -

• Message number: 004

• Message text: Cannot collapse object type task list for change number &1

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /PLMI/ECN_SP004 - Cannot collapse object type task list for change number &1 ?

  The SAP error message /PLMI/ECN_SP004 Cannot collapse object type task list for change number &1 typically occurs in the context of Engineering Change Management (ECM) within SAP. This error indicates that there is an issue with collapsing or processing a task list associated with a specific change number.
  Causes:
  
  Task List Not Found: The task list associated with the change number may not exist or may not be properly defined in the system.
  Authorization Issues: The user may not have the necessary authorizations to access or modify the task list.
  Inconsistent Data: There may be inconsistencies or errors in the data related to the change number or task list.
  System Configuration: There may be configuration issues in the ECM module that prevent the task list from being processed correctly.
  Locked Objects: The task list or related objects may be locked by another user or process, preventing the operation from completing.
  
  Solutions:
  
  Check Task List Existence: Verify that the