How To Fix GHO_ALLOC_UI156 - Tasklist has not been maintained for the selected Network Object

SAP Error Message - Details

• Message type: E = Error

• Message class: GHO_ALLOC_UI - Message Class for UI for Allocation

• Message number: 156

• Message text: Tasklist has not been maintained for the selected Network Object

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message GHO_ALLOC_UI156 - Tasklist has not been maintained for the selected Network Object ?

  The SAP error message GHO_ALLOC_UI156 indicates that a task list has not been maintained for the selected network object in the context of project management or production planning. This error typically arises when you are trying to allocate resources or perform operations on a network object (like a project or production order) that does not have an associated task list defined.
  
  Cause:
  
  Missing Task List: The primary cause of this error is that the task list for the specific network object has not been created or maintained in the system.
  Incorrect Configuration: There may be configuration issues in the project or network settings that prevent the system from recognizing the task list.
  Data Entry Error: The network object you are trying to work with may not be correctly set up or may have been incorrectly referenced.
  
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Maintain Task List:
  
  Navigate to the relevant transaction in SAP (e.g.,