How To Fix CM_EAM_TL_API100 - No unique HTL found for (hierarchical) task list &1/&2/&3

SAP Error Message - Details

• Message type: E = Error

• Message class: CM_EAM_TL_API - Message class for eam task list API

• Message number: 100

• Message text: No unique HTL found for (hierarchical) task list &1/&2/&3

What causes this issue?

More than one hierarchy task list has the (hierarchy) task list &V1&/
&V2&/&V3& as child.

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?

Check the exporting parameter ET_PLKOD_SELECT and choose a hierarchy
task list to go with.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CM_EAM_TL_API100 - No unique HTL found for (hierarchical) task list &1/&2/&3 ?

  The SAP error message CM_EAM_TL_API100 indicates that the system could not find a unique hierarchical task list (HTL) for the specified task list type, group, and version. This error typically occurs in the context of maintenance planning and execution when the system is trying to retrieve or process a task list that is expected to be unique but is not.
  
  Cause:
  
  Non-Unique Task Lists: There may be multiple task lists with the same identifier (task list type, group, and version) in the system, leading to ambiguity.
  Incorrect Input: The parameters provided (task list type, group, and version) may be incorrect or not match any existing task lists.
  Data Inconsistency: There could be inconsistencies in the database or issues with the data model that prevent the system from identifying a unique task list.
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to view or access the task lists.
  
  
  Solution:
  
  Check Task List Entries: Verify the