Concatentate text from multiple Zendesk tickets to same field in single Jira On-Premise issue

Originally asked by Sandra Campbell on 07 June 2023 (original question)


Multiple Zendesk tickets contain a different value in the “Part Number” field. They are being exalated to a single Jira On-Prem issue.
Is it possible to add/concatenate the contents of the value in the Zendesk Part Number field to the existing contents of the Jira Part Number field - rather than replacing what’s there.

So, as part of the Jira Incoming Sync - on first sync only.
thanks, Sandra