Support Message in Service Desk locked bc. "Document is being distributed"

Hi all,

due to some misconfiguration, I have a support message in Service Desk (transaction type is ZLFN, a copy of SLFN), which I cannot change anymore.

I get the error message "Document is being distributed - changes are not possible".

I checked the Queues according to this Thread: Document is being distributed-changes are not possible

But without luck - still have the error message.

Does anyone know, how to release this distribution lock?

Alternatively, I would be happy just to set the user status of this support message to Confirmed.

Anybody knows, which TX or Table to use to achieve that??

Thanks,

Jan