How do you send a payment link inside a DM?

Add a send payment link step where the conversation reaches the point of buying, then trigger the follow-up on the payment result rather than on the send.

The two triggers you need after it are payment succeeded and payment failed. Both fire on the contact, so a separate automation can pick up each one. That separation is the important part: the flow that sends the link should not sit waiting for money to arrive, because people close the tab, pay an hour later, or pay from a different device.

A working shape:

1. Conversation flow: qualify, answer questions, send payment link, end.
2. Automation on payment succeeded: confirm, deliver, tag the contact as a

customer.

1. Automation on payment failed: one short message offering help, no pressure.

What this does not do: it is not a shop. There is no product catalog, no inventory and no order management, and there is no built-in Shopify app. If your catalog lives elsewhere, use an HTTP request step to look up what you need, or send people to your existing checkout.

The failed payment automation is the one people skip and the one that pays for itself. A card decline is not a lost customer, it is a customer who needs thirty seconds of help, and right now they are still in a chat with you.