Help & SupportTroubleshooting

Fix sign-in problems

Mastro signs you in with a magic link — you enter your email, we send you a link, tapping it signs you in. No password to forget. When it doesn't work, it's almost always one of the cases below.

The magic-link path: request a link, use the newest one, you're in — used and expired links simply need a fresh request

  • Check spam/junk — and mark it "not spam" so the next one lands properly.
  • Check the address — the link only goes to the exact email your account was created with. A typo means silence, not an error.
  • Wait a minute, then request again — delivery can lag; the newest link is the one to use.

Magic links are single-use and expire quickly. The common causes:

  • It was already used — tapping twice, or a mail app "previewing" the link, consumes it. Request a fresh one.
  • It's old — yesterday's email means an expired link. Always use the newest.
  • It opened in the wrong browser — some mail apps open links in their own built-in viewer. If the link lands you back at the login page, copy it into your normal browser (the one you requested it from) instead.

Google and bexio sign-in

  • Google — works when your account email is the same Google address. Same email, no link needed.
  • bexio — you can sign in with your bexio login, but only for an existing Mastro account; it never creates one.

Signing in on a new phone

Nothing to transfer — request a magic link on the new device and you're in. Your organisation, jobs and settings all live in your account, not the phone.

Still stuck?

If none of this lands you inside, contact us — from the help centre footer or by messaging our WhatsApp support number if you have it. Include the email address you're trying, and we'll sort it quickly.

Frequently asked

My magic link says it's invalid or expired — why?

Links are single-use and expire quickly. If you tapped it twice, or it sat in your inbox for a while, request a fresh one from the login page — that fixes almost every case.

Can I create an account by just signing in?

No. Mastro accounts are set up for you when your organisation is created — signing in with an email that has no account won't create one. If you're crew, ask your boss for your personal link instead; crew don't need a login at all.

Do my crew have this problem too?

No — crew don't sign in. They use their personal no-login link for hours, photos and their schedule. Logins are for owners and managers.

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