Hi,
What i would like to create is the following.
I would like to automatically link tickets together automatically that we receive via e-mail and creates tickets.
Summary text is different but always has a matching uniqueID in there for that communication. Some examples in screenshot.

Doing it with Branch/Rule does not work. It matches all of them on the summary when the numbers in that summary are different.
So my best guess to go forward is.
When a ticket is created, it gets the uniqueID from the summary and puts that in a custom field. Like custom field with "123456789" or the other "[ABC0012345]"
With this custom field i can link tickets together when we receive them to look this up an match them and then link automatically.
Is there a way to do this of does someone have another ideas on howto get this done?
Thanks in advance!