Map the custom field with the external key in Jira Rest API when creating an issue

[erfan pj]

I want to Map the custom field with the external key in Jira Rest API when creating an issue For example :

• The external API call my Jira to create a new Ticket: /rest/api/2/issue...

  Related fields : Title = "Test 1" Category = Software ...

And then I need to Map this field to my Jira fields,

Summary = Title

Customefield_2025 = Category...

how can it possible, I tried to develop with SIL validator but the problem is can't get the Title value. is there any Idea?

[David_Bakkers]

Not sure what you mean by 'Map' a custom field. Your REST API example is the endpoint for setting values for issues.

Are you trying to:

1. Create a custom field from scratch.
2. Add an existing custom field to one of the screens of an issue type
3. Set a custom field's value for an issue