Moving your wedding seating plan off Prismm

What Cvent has announced

These dates come from Cvent’s own migration pages, not from Prismm’s marketing site.

1. Now

   Prismm is part of Cvent, and Prismm customers are being moved to Cvent Event Diagramming.

2. 26 August 2026

   Last cutover to creating new events only in Cvent Event Diagramming.

3. September 2026 to June 2027

   You can keep editing existing events in Prismm.

4. June 2027

   Prismm access ends. Cvent says Prismm-created work stays available in Cvent in view-only mode. Cvent has not given a day in the pages we checked.

What to export before access ends

• Cvent advises exporting the floor plans and reports you want to keep, and saving those files before the sunset date.
• Copy your guest names from your spreadsheet or guest list. Names are what you need to rebuild a seating chart.
• Keep a PDF or picture of your venue layout so you can match table numbers and room shape.

We have not built a Prismm file importer. The Cvent pages we checked do not describe a file format for moving a layout into another tool, so pasting your guest names is the reliable route.

If you want to plan seating with your partner

Weduler is a shared planning workspace for couples. Seating works on web, Android and iOS, with reception, ceremony and cocktail layouts, a venue floor-plan backdrop, seating constraints, and Find your table on your guest website. You can bring your draft from the free tool into your workspace in one step.

Sources

• Cvent Community: Prismm to Cvent Event Diagramming Migration
• Cvent Community: Moving from Prismm to Cvent Event Diagramming FAQ
• Prismm: now part of Cvent

Checked 7 October 2026. These pages show no last-updated date, so confirm the dates in your own Prismm account notices before you rely on them.

Common questions

When does Prismm stop working?

Cvent says Prismm will stay available for editing existing events through June 2027, and that Prismm access ends then. It has not given a specific day in the pages we checked, so confirm in your Prismm account.

Can I still make a new seating chart in Prismm?

Cvent says new events can only be created in Cvent Event Diagramming since 26 August 2026. Existing Prismm events remain editable until June 2027.

Will my Prismm work disappear?

Cvent says Prismm-created work stays available in Cvent in view-only mode, and advises exporting the floor plans and reports you want to keep before the sunset date.

Can I import a Prismm file into Weduler?

Not yet. The Cvent pages we checked do not describe a file format for moving layouts into other tools. Paste your guest names into the free seating chart maker and rebuild your tables.