How To Fix DPR_TASK019 - Cannot change tasks: Action &1 is not possible

DPR_TASK019 - Overview

• Message type: E = Error

• Message class: DPR_TASK - Messages for Tasks

• Message number: 019

• Message text: Cannot change tasks: Action &1 is not possible

What causes this issue?

All subtasks must be in change mode for action &V1&. However, at least
one subtask cannot be locked and therefore it cannot be imported for
change. One reason for this could be that the task is already being
edited.

System Response

The system does not perform action &V1&.

How to fix this error?

Repeat action &V1& once all subtasks can be imported for change.

Procedure for System Administrators

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 DPR_TASK019 - Cannot change tasks: Action &1 is not possible ?

  The SAP error message DPR_TASK019, which states "Cannot change tasks: Action &1 is not possible," typically occurs in the context of project management within the SAP system, particularly when working with the SAP Project System (PS) or SAP Portfolio and Project Management (PPM) modules. This error indicates that a specific action you are trying to perform on a task is not allowed due to the current status of the task or other constraints.
  Causes:
  
  Task Status: The task may be in a status that does not allow for the requested action. For example, if the task is completed or closed, you may not be able to change certain attributes.
  Authorization Issues: The user may not have the necessary authorizations to perform the action on the task.
  Dependencies: There may be dependencies or relationships with other tasks that prevent changes.
  Locked Tasks: The task might be locked by another user or process, preventing modifications.
  System Configuration: Certain