Automatically Linking of issues based on Custom Field

[DevaKiran]

Hi,

I need a script to link the issue automatically to another issue of different issue types in the same project. Here is the requirement below:

I am working on Jira Service Desk data center and has two issuetypes in the projects as  "Analysis Form" and "Application". Here "Analysis Form" is raised by Agent or an internal Jira service desk user and "Application" is raised by customer. 

There is one common custom field in both the issue type. If the text in the field matches in both the issue types then the linking should happen automatically.

Please help me in providing the script

Thanks in Advance!!!

Regards

Deva