STEP-1

Go to Jira project configuration ** In Workflows tab Click EDIT Icon.

In Post Functions tab section, Click Add Post Function

STEP-2

Choose Jenkins Job Run Function and Click Add

STEP-3

Configure Post Function and Click Add

Here is example to use Issue fields for Jenkins parameters:

PRODUCT_NAME={customfield_10300}&RELEASE_VER={fixVersions}

Note. You can find custom field ID at, Issues > Custom Fields > Click Edit > You will find in URL.

Supported System Fields

summary, description, key or issuekey, type or issuetype, status, priority, 
components, labels, fixversions, assignee, reporter

STEP-4

Review and Click Publish

STEP-5

Transition Issue and verify if Jenkins Job triggered.

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