
๐Link
You can link issues to keep track of duplicate or related work. You can, for example:
create a new linked issue from an existing issue in a service project or business project
create an association between an issue and a Confluence page
link an issue to any other web page
Make sure you have the link issues project permission before getting started. Note that your Jira administrator can customize the types of links that you can create.

Create issue link
POST /rest/api/{2-3}/issueLink
Creates a link between two issues. Use this operation to indicate a relationship between two issues and optionally add a comment to the from (outward) issue, the method returns the following information:
If the link request duplicates a link, the response indicates that the issue link was created. If the request included a comment, the comment is added.
Get issue links
GET /rest/api/{2-3}/issue?fields=issuelinks
Return the issue links associated with a Jira Issue, the method returns the following information:
Get issue link
GET /rest/api/{2-3}/issueLink/{linkId}
Returns an issue link, the method returns the following information:
Delete issue link
DELETE /rest/api/{2-3}/issueLink/{linkId}
Deletes an issue link, the method returns the following information:
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