How to edit the list of suggestions via rest api?

[Mister Kat]

Since my prev q (https://community.atlassian.com/t5/Jira-questions/Connect-Jira-to-a-web-app/qaq-p/943072) might be too broad in topic, I have a more precise one:

How can I edit the list of suggestions in a custom field dropdown via rest api?

[Nic Brough -Adaptavist- · Accepted solution]

Custom fields do not suggest selections, so I'm guessing you mean you want to edit the list of options available.  REST does not yet allow for this, it's aimed at updating issues, not admin.