Dispute Management - remove invoice from Case

Hi all

I am a bit knew to Dispute Management and have inherited the config. I want to know how you re-assign or remove an invoice from a Case if it has been incorrectly assigned. When I try and use the delete button after selecting the object in the case (under Linked objects), I get the following error

<b>You cannot change this system node manually

Message no. UDM_MSG015

Diagnosis

You are trying to change, add or delete an object in a record node that, according to the record model, is reserved for the system.

This object should only be changed by the system and not manually.

System response

The action is not permitted.

Procedure

Use objects and records nodes from the customer area for your changes</b>

Is it possible to remove invoices from a case?

Thanks

Gidon