Child incident should not close when assigned_to field is empty in Parent incident.

[jMarshal]

Are you thinking of making it so that a fulfiller can't close a child incident, when the parent incident is unassigned?

You can use an advanced condition on the 'close' button (UI Action) and an onload Client Script which sets the "state" field to read only, when parent incident is unassigned.

[Alka_Chaudhary · Accepted solution]

Hello @Demo25 ,

You can create before update business rule with conditions - Parent Incident.Assigned to is empty and State changes to Closed then abort the action and add message.

You can refer to below screenshots:-

Please Mark my answer Helpful & Accepted if I have answered your question.

Thanks,

Alka