which custom field type to use ? or any suggestion ?

[Priyank]

to categorize/group on jira based on a criteria (which has 400+ options to choose from, and growing) what's a best customField to use ?

We've been using labels, which we know is a pain - and can loose standard - (random ex - MSTeams - Microsoft Teams - Teams)

Any suggestion, what type of customField can we use?

[Nic Brough -Adaptavist-]

I'd look at the cascading select list, it can break your main list into logical groups (example might be "country -> region", so you'd list USA/States, UK/countries, regions or even counties, and so-on)

[Priyank]

Just cross checked my list, even with this approach - my top level might still be 250+but I can force down some dummy values to scope it.

would you have an example of how i can setup levels ? as multiple input fields ?

[Nic Brough -Adaptavist-]

I can't see a way to do that on Cloud.  You may have to do some data analysis with the aim of reducing lists to the minimal useful reporting values.

[Priyank]

noted.