I am in charge of an internal IT helpdesk and an external customer support project. Sometimes one of the customer support requests will need to be handled by our IT dept so someone on our support team will put in a helpdesk request. More rarely, several support requests will be related to one helpdesk ticket. Since you can't put the "Linked issues" field on the customer portal, I wanted to use a scripted multi-select issue picker. The only problem with that is that it only provides a single direction link. I've figured out how to copy the value of my scripted issue picker to the linked issues field using automation, but it only works it there's only one issue picked.
I've seen what I think might be at least partial solutions to my problem (https://community.atlassian.com/t5/Jira-questions/Copy-Issue-Picker-value-s-to-Linked-Issue-Field/qaq-p/1112392) but as a ScriptRunner/programming novice, I have no idea how to begin implementing it. Is there someone out there who can help?