At the moment, it is not possible to edit the office address for the follow-up email of Lead flow.
A workaround is to create a Workflow and send an automated email for follow up, however, it would be more efficient to use the function of the Lead flow itself.
So my suggestion is to make it possible to edit the office address of follow-up email of Lead flow just like Marketing email. It would be easier to edit the address tokens and change the order.
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