Let customers pay from their phone.

The message should identify the business, invoice, amount, and secure destination. Customers should never have to guess whether a random short link is trustworthy. Provide a way to verify a request if they are unsure.

Use hosted checkout or provider-approved collection methods. Do not store payment card numbers, security codes, or card photos in customer notes, SMS threads, or ordinary website databases.

A link may expire, be opened twice, or be forwarded. The workflow should reject duplicate charges, show a clear status, and let authorized staff issue a fresh request if needed.

Payment is complete only when a trustworthy provider event has been verified and reconciled to the right invoice. Staff should also be able to identify failed attempts, refunds, and disputes without guessing.

Example to try: After a furnace repair, the office sends an invoice-specific link. The customer sees the provider checkout, pays, and the office only marks the balance settled after verified confirmation.

• Open a test payment link that was already paid and confirm it cannot double-charge.
• Verify expired-link messaging and authorized reissue behavior.
• Confirm the provider handles card entry outside normal application storage.
• Simulate a delayed webhook and check accurate invoice reconciliation.