I want an external code to run as soon as workflow status changes from one to other. Can this be achieved through any add-ons? I already have that external code available

[sarala]

I want an external code to run as soon as workflow status changes from one to other. Can this be achieved through any add-ons? I already have that external code available 

[GabrielleJ]

A couple of ways to accomplish this:

• Use the JIRA built-in feature called JIRA Webhooks (https://confluence.atlassian.com/jira/managing-webhooks-300814309.html).
• If you don't like that, find an add-on in the Atlassian Marketplace that allows you to run a script in a post-function (like JIRA ScriptRunner, JIRA Misc Workflow Externsions JMWE). It's like kicking of a groovy script to do whatever you like during a post-function.