Guests are arriving for an event while the organiser is still updating the registration list. A new guest or attendance change can trigger a text through Mobile Message, giving people timely instructions without another round of manual list checks.

New Guest can send a welcome message with arrival information, while Updated Guest Status can notify a guest when their attendance or registration status changes. Updated Guest can also prompt a targeted follow-up when contact details or other guest information changes. If a guest texts your Mobile Message number, Inbound SMS Received can create a contact for your team to review.

Envelope has no supplied actions, so its useful workflows run into Mobile Message. Zapier can map guest names, mobile numbers and event details, with filters controlling which event or status sends a message. The connection does not maintain a two-way guest sync or update the Envelope record from SMS. Set up each workflow through Zapier with separate Envelope and Mobile Message accounts. No code is required, and testing with a sample guest helps confirm the event fields.