From the management menu, open the members list to locate the person whose information you want to update.

Click the row of the member you want to update — here "Member One" — to open their detail page.

Click "Modify" in the member header — the update dialog opens, pre-populated with the member's current information.

Update the first name and email address in the matching fields. The other fields stay as they were and are preserved unchanged.

Step through the address and banking panels without changing anything, then click "Save" to send the updated information to the CRM.

Back on the member's detail page, the new first name and email address show up right away — the change has been persisted server-side.