How To Fix UCS0071 - The current task group contains predecessor relationships

UCS0071 - Overview

• Message type: E = Error

• Message class: UCS0 - Messages for Status Management

• Message number: 071

• Message text: The current task group contains predecessor relationships

What causes this issue?

The task group contains tasks that have predecessor and/or successor
relationships between each other. Therefore, parallel execution of these
tasks is not possible.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

UCS0071 - Details

• The SAP error message UCS0071 indicates that there are predecessor relationships within the current task group, which is causing an issue when trying to perform a certain action, such as scheduling or modifying tasks in a project.
  
  Cause:
  The error typically arises when:
  
  You are trying to perform an operation that is not allowed due to existing dependencies between tasks in the task group.
  The task group contains tasks that are interdependent, meaning that one task must be completed before another can start, which can create a conflict when trying to modify or delete tasks.
  
  
  Solution:
  To resolve the UCS0071 error, you can take the following steps:
  
  
  Review Task Dependencies: Check the task group for any predecessor relationships. You can do this by navigating to the project management or task management module in SAP and reviewing the task dependencies.
  
  
  Modify Dependencies: If you find that there are unnecessary predecessor relationships, you can modify or remove them. This may