Guides
Guides for Shopify merchants
EU VAT & VIES
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Does Shopify validate EU VAT numbers?
Shopify checks EU VAT numbers at checkout only with Shopify Tax, for guest and Shop Pay checkouts. What it covers, what it leaves out, and when an app fits.
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VIES VAT validation errors and what they mean
What INVALID_INPUT, MS_UNAVAILABLE, MS_MAX_CONCURRENT_REQ, TIMEOUT and an "invalid" VIES answer mean, which ones say anything about the number, and what to do.
Rezervito
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How to accept appointments through your Shopify store
How appointment booking works on a Shopify store, a test with four checks for any booking app, and when a Shopify booking app isn't the right choice.
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How to prevent double bookings on Shopify
Why two customers end up in the same slot on a Shopify store, the four causes behind it, and a five-minute test to see whether your booking app stops it.
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How to let customers cancel or reschedule appointments online
Online cancelling and rescheduling without losing money — the four rules to set (window, late cancels, deposits, how often a booking moves) and what to tell customers.
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How to give staff their bookings without Shopify admin access
Your stylists and therapists need their own calendar, not your store's admin. What staff actually need to see, what to keep from them, and how a staff portal does it.
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Booking deposit policy template for service businesses
A short deposit and cancellation policy you can copy and adapt — deposits, in-time and late cancellations, no-shows and rescheduling — with notes on each part.
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How to handle repeat no-show customers
A step-by-step way to deal with clients who keep missing appointments — from a friendly message to deposits, no-show fees and blocking online booking.
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How to reduce no-shows in a salon
Reminders, easy cancelling, deposits, a clear policy and a record of who doesn't turn up — what works against no-shows, and how to measure it.
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Should you charge a booking deposit?
When a booking deposit is worth it for a salon, clinic or studio, when a cancellation fee is enough instead, how much to take, and what to do with it when clients cancel.