How to make a ticket field mandatory depending on the status ?

Hello,

This option is not yet available directly via Zendesk. I know two ways by which you can reach the goal.

1. Via Trigger
You can create a trigger for such a case:

Conditions:
Status is „on hold“
AND
Due Date is „non-existent“

Action:
Status: Open

The ticket then appears again in the processing queue of the assigned agent. Only when the due date has been entered does the ticket remain in the status „on hold“.

It is possible to extend the trigger, for example by sending an e-mail with an explanation that the responsible agent.

2. Via an Marketplace-App

You can install the app „Ticket Requirements“.
https://www.zendesk.com/marketplace/apps/support/126519/ticket-requirements/

This allows you to display a notification when certain fields are empty and the agent wants to save the ticket.

Best Regards
Nils

Hello Nils Z.,

Thank you.
Unfortunately, the app "Ticket Requirement" doesn't answer 100% to my needs.

Hello Renaud,

this is a pity.
Maybe the developer is interested in your feedback and incorporates it into a new version. :)

Best Regards
Nils

This would be great if notification could be based on advanced trigger

Thanks for jumping in to help, Nils Z.! 

Renaud Croix - I sent a link to this conversation to the PM for this area of the product, to make sure they are aware of your needs here.