This is what SF or Outlook sends. Everything is static except the button link.
Hi Jane,
We're reimbursing you £325.00 for MI-STO-26 travel. To receive it, confirm your payout details — it takes about two minutes.
This link is personal to you. Please don't forward it.
JdeyiLE48TxadOsmTBaLeD3TI_SmRN-6 against the record and merge
https://payouts.wwideevents.com/r/{!Token} into the template's button. That's the entire integration —
Salesforce never touches Stripe.