How To Fix USMD6150 - Instance &2 of entity type &1 is a hierarchy node: deletion not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: USMD6 - Messages for Data Transfer

• Message number: 150

• Message text: Instance &2 of entity type &1 is a hierarchy node: deletion not possible

What causes this issue?

There was an attempt to delete instance &SYST-MSGV2& of entitytype
&SYST-MSGV1& which is a hierarchy node.

System Response

The deletion is not possible.

How to fix this error?

Remove the respective object from the hierarchy. If subnodes are
assigned to it remove the subnodes subsequently. Start with the removal
of leaves which do not have subnodes. At the end the automatic removal
of the respective instance by means of data upload will be possible.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.