Jira Assets - use regular expression for attribute validation - max 3 characters

[Simon Sahli]

Hi Atlassian community,

we are using Jira Assets and for one attribute we would like that only 3 characters can be used. This is a rule and if people are not doing this then we get problems in post processes.

I know there is a validation functionality for Jira Asset attributes for which one can use a "regular expression". I however never used this and I am not sure if and how the requirement of max 3 characters can be achieved with this.


My question therefore, do you know if with this regular expression we can define that max 3 characters (signs) shall be used? Or even better precisely 3 characters?
If yes, then I would appreciate an example.

Lastly, this is a text attribute.

Thanks for any kind of input!

Cheers,
Simon

[Mark Higgins · Accepted solution]

Hi Simon,

I must admint I did use Google Gemini to show me this and it came back with:

Specific Format Validation:

^[A-Z]{3}-[0-9]{4}$

This regex matches a specific format, such as three uppercase letters followed by a hyphen and four numbers (e.g., ABC-1234).

So in your example, ^[A-Z]{3} will require 3 upper case characters.

I tried this and it appears to work, so I've learnt something as well.

Cheers

Mark

[Simon Sahli]

Hi @Mark Higgins
thanks for your extra effort and yes it works exactly as I wanted!
You must type in exactly three alphabetical characters with capital letters.
So my case is solved.

I just have one last question before closing this 
What is this "expression language" for Asset attributes called? Like there must be some documentation on this somewhere, non?

Otherwise, I will just also use AI tools for the next case.

Thanks, 
Simon

[Mark Higgins]

Hi Simon,

Its actually an industry standard, called Regex.

If you google Regex, you will see where I found this.

Glad it worked.

Cheers

M