Do you mean change the value of the reporter field, or change the label from Reporter to Somename? If the first, you need permission to update reporter in the permission scheme. Being an admin DOES NOT give you any permissions in projects. Those permissions are controlled by the permission scheme. I know some tools give admins permission to do anything which is a very bad security model, JIRA doesn't.
Learn how to use two new reports for next-gen projects in Jira Cloud: Cumulative flow diagram and Sprint burndown chart. Ivan Teong, Product Manager, Jira Software, demos the Cumulative ...
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