Mark Unshared tickets as solved.

Hello Michalis,
 
Thank you for reaching out with your question regarding the ticket sharing agreement between Zendesk Support accounts. If I understand correctly, you're looking to automatically mark tickets as "Solved" when they are unshared.
 
Unfortunately, our built-in triggers and automations do not naturally recognize the "unsharing" of a ticket as a standard event. However, I can propose a couple of alternative approaches that might serve your purpose:
 

• First, consider solving the ticket in the original instance before unsharing it, ensuring that the ticket's updated status carries over.
• Alternatively, if tags are synchronized when sharing tickets, you could set up a tag-based trigger in the receiving account to solve the ticket. Please note, this would require manually unsharing the ticket afterward.

 
As of my current knowledge, I haven't come across any third-party apps tailored to this specific scenario. Nevertheless, I hope the suggestions above may be of some assistance. Thank you again for your inquiry.