JIRA REST API can't get custom field options

Jira Development Jira Cloud
1

I use ‘/rest/api/3/customField/{fieldId}/option’ to get the field options
I had grant ADMIN to my account.
This is result

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image1884×1164 160 KB

3

Sorry,It’s Jira cloud REST API

4

Please read this deprecation message which explains how to now get the options of a custom field and also include the context.