How To Fix UCUM026 - Task hierarchy contains ambiguous task or task group IDs

SAP Error Message - Details

• Message type: E = Error

• Message class: UCUM - Messages for Monitor

• Message number: 026

• Message text: Task hierarchy contains ambiguous task or task group IDs

What causes this issue?

The name of a task or task group occurs more than once in the task
hierarchy of your system. This inconsistency must be remedied.

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?

Change the definition of the task hierarchy in the consolidation
workbench. When doing so, delete any duplicate occurrences of the names
of tasks and task groups from the hierarchy. Each name can occur once
only.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.