What happens if I uninstall?

Straight away:

• imports, syncs and store copies stop;
• MostStack's access to your store is removed, and any open MostStack session for the store ends;
• Shopify ends your plan;
• stores you share stock with see their import of it pause.

After 48 hours: your data is kept for 48 hours, so reinstalling in that time finds everything as it was. After that, all of it is deleted: suppliers and their files, syncs, history, notices, sharing invites and feedback. Reinstalling later starts fresh.