How To Fix UCS0070 - Action supported only for task groups without predecessor relationships

UCS0070 - Overview

• Message type: E = Error

• Message class: UCS0 - Messages for Status Management

• Message number: 070

• Message text: Action supported only for task groups without predecessor relationships

Self-Explanatory Message

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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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UCS0070 - Details

• The SAP error message UCS0070, which states "Action supported only for task groups without predecessor relationships," typically occurs in the context of project management within SAP, particularly when dealing with task groups in the Project System (PS) module or similar functionalities.
  
  Cause:
  This error arises when you attempt to perform an action (such as scheduling, releasing, or executing a task) on a task group that has predecessor relationships defined. In SAP, certain actions are only permissible for task groups that do not have any dependencies or predecessor relationships. The system enforces this rule to maintain the integrity of the project scheduling and execution processes.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Task Group Relationships:
  
  Review the task group in question and identify any predecessor relationships that may exist. You can do this by navigating to the task group details in the project management module.
  
  
  
  Remove or Modify Predecessor Relationships:
  
  If the task group