Auto assign tickets and bypass add participants for different projects team

[Rella Ramesh]

How to auto-assign tickets in jira and  how to bypass add participants in a ticket.

[Manuel Bastardo Castellano · Accepted solution]

Auto changing the assignee in each transition (Stage). In order to do that please follow these steps:

1. Log in as a user with the JIRA application administrator global permission.
2. Click the cog icon from the top bar and select JIRA Administration > Issues, thenWorkflows (in the left pane)
3. Click View on the targeted workflow 
4. Click the name of the desired transition 
5. Enter the post-function tab
6. Click Add Post Function
7. Select Update Issue field
8. Add
9. Select Assignee in the Issue Field
10. Start typing the username in the Field Value text box or click the Select a User icon beside the text box and select the desired user and click Add.

the same thing for watchers

[Rella Ramesh]

How to bypass the requested participants for ticket in jira and how to this for multiple projects with multiple users?

[Rella Ramesh]

How to segregate the issue type and how to automate requested participants for the issues ?

[Manuel Bastardo Castellano]

Work with Groups, Issue security level and Configure conditions and postfunction in workflows

[Eric Engel]

So how do you do this on a per project level?  Let's say I have 100 projects and for 3 of them, I want to auto-assign tickets to John Doe every time the ticket is put into "Ready For QA" status.