External issue ID field purpose

[Hayley Rodgers]

Hello! 

Just doing a bit of an audit of my company's Jira and I've come across stacks of "External issue ID" custom fields. It looks like one new field is being created by JIM each time we import a set of issues using the External System Import feature. 

Can I delete them? What is their purpose?

[Aron Gombas _Midori_ · Accepted solution]

I think the purpose of that field is giving you backward traceability and searchability.

For example, if you used a different issue tracker in the past and you had a bug with ID=12345, then when you import it to Jira, it will receive a Jira-style issue key like "FOO-567", but the importer will save its old ID to that custom field. Because this info is preserved, you can search for the issues based on their old IDs even in Jira.

This is critical in many situations.

[Mariano]

Hello @Aron Gombas _Midori_ ! Could this also be used for example when I open a ticket with my Internet vendor and they have their own ticket number?

[Aron Gombas _Midori_]

@Mariano Yes, that would be a very intuitive use of the field, I think.