How To Fix DPR_SHARED245 - &1 &2: Cannot undo start constraint

SAP Error Message - Details

• Message type: E = Error

• Message class: DPR_SHARED - Development Projects: Messages for Shared Objects

• Message number: 245

• Message text: &1 &2: Cannot undo start constraint

What causes this issue?

You want to undo the start constraint. However, <(>&<)>V1&
<(>&<)>V2& is the successor in a relationship and its predecessor
task belongs to a different phase.
The relationship between the two tasks is now competing with the
relationship between the two phases to which these tasks belong. This
could cause a <ZH>scheduling conflict</>. The relationship between the
phases has priority.
To ensure this, the system sets the <ZK>start no earlier than</> start
constraint for the successor task.

System Response

The start constraint remains.

How to fix this error?

Check the cross-phase relationship.

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_SHARED245 - &1 &2: Cannot undo start constraint ?

  The SAP error message DPR_SHARED245 typically occurs in the context of project management within SAP, particularly when dealing with project planning and scheduling. This error indicates that there is an issue with undoing a start constraint on a project element, such as a task or activity.
  Cause:
  The error message DPR_SHARED245 can be triggered by several factors, including:
  
  
  Invalid State: The project or task may be in a state that does not allow for the modification of constraints. For example, if the project is locked or if the task is already in progress, you may not be able to undo constraints.
  
  
  Dependencies: There may be dependencies or relationships with other tasks that prevent the modification of the start constraint. If other tasks are linked to the task in question, changing the constraint could violate those dependencies.
  
  
  User Permissions: The user may not have the necessary permissions to make changes to the project or task constraints.
  
  
  System Issues: There could be a temporary system issue or inconsistency in the project data that is causing the error.
  
  
  Solution:
  To resolve the DPR_SHARED245 error, you can try the following steps:
  
  
  Check Task Status: Ensure that the task is not in a state that prevents changes. If the task is currently being worked on or is locked, you may need to wait until it is free.
  
  
  Review Dependencies: Examine the dependencies of the task. If there are linked tasks, you may need to adjust their constraints or relationships before you can modify the start constraint of the task in question.
  
  
  User Permissions: Verify that you have the appropriate permissions to make changes to the project or task. If necessary, contact your system administrator to ensure you have the required access.
  
  
  System Check: If the issue persists, check for any system errors or inconsistencies. You may need to run a consistency check or consult with your SAP support team for further assistance.
  
  
  Use Transaction Codes: If you are familiar with SAP transaction codes, you can use relevant transactions (like CJ20N for project management) to navigate to the task and check its properties.
  
  
  Consult Documentation: Review SAP documentation or help resources for any specific notes related to this error message, as there may be additional context or updates provided by SAP.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can provide insights or solutions.
  Training and Documentation: If you are new to SAP project management, consider reviewing training materials or documentation to better understand how constraints and dependencies work within the system.
  
  If the problem continues after trying these solutions, it may be necessary to escalate the issue to your SAP support team for further investigation.