Will data be retained when reconfiguring a single selection field to a multi-selection field?

Question

I would like to reconfigure a field with a single selection drop-down to a multi selection field, where several selections from a drop-down list can be made.

When reconfiguring, will the single selection data already in the tickets be carried over to the reconfigured field? I.E., appear as a selection in the multi-selection? For example:

SINGLE SELECTION DATA = 1

RE-CONFIGURED FIELD TO MULIT-SELECTION = 1  (can then add more selections)

John Funk · Answer

Sure, here is an example. When you create the Scheduled trigger, put in a JQL query like Project = ABC for the project that you are updating.

Steve Hooczko_zrtbba · Answer

What would the automation rule be?

Will the rule copy the old data for all tickets in the project to the new field?

John Funk · Answer

Hi Steve,

There is no way to convert a custom field type. You have to create a brand new field and then you can copy the data from the original field to the new field using an automation rule.