Learn how to update a customer's phone number with SumUp Connect. Follow these easy steps to keep contact information current.

How to update a customer's phone number

Canada

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Swedish

Spain

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Portuguese

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Polish

Peru

Peruvian Spanish

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Netherlands

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Latvian

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Hungarian

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Greek

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Finnish

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Danish

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Czech

Croatia

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Colombia

Chile

Bulgaria

Bulgarian

Brazil

Belgium

Austria

Australia

Malta

Learn about our bookings feature and get your questions answered

Bookings

SumUp Help Center | Understanding payments

US 🇺🇸 | Help Center Understanding Payments Icon

Understanding payments

US 🇺🇸 | Help Center POS+L Icon

SumUp POS

Discover all you need to know about the SumUp Pro Card Reader. Learn how to set up your Pro Reader, accept payments and enable employee profiles and tipping.

Pro Card Reader

Remote payments ensure there are lots of ways you can get paid with SumUp. From payment links to gift cards, learn how to securely take remote payments.

Remote Payments

Remote payments

Keep your business running smoothly with details on how to start accepting payments and get paid with SumUp, from refunds and receipts to NFC and tipping.

accepting payments

Accepting payments

ICON: SumUp Terminal 

SumUp Terminal

SumUp helps you manage your business with a host of useful features on your profile. Easily add items to sell via SumUp profile and manage employee profiles.

ASSET: Business management icon

Business management

US 🇺🇸 | Help Center Account Setup Icon

Account setup

From setting up your SumUp Plus Card Reader to accepting payments and issuing receipts, here's everything you need to make the most of your Plus card reader.

SumUp Help Center Plus Icon

Plus Card Reader

US 🇺🇸 | Help Center Lite Reader Icon

Lite Card Reader

Discover how to use the SumUp Solo Card Reader. From setting up your Solo to accepting and refunding payments, here's how to make your Solo work for you.

SumUp HelpCenter Solo Icon

Solo Card Reader

The SumUp Business Account gives you faster access to your money. Learn how to manage transfers, activate your SumUp Card and learn more about payment limits.

Card

SumUp Business Account

Kiosk is a SumUp POS add-on that provides self-service ordering and frees up staff time.

Kiosk

Accept payments

My profile

My Account

US 🇺🇸 | Help Center Sales History Icon

Sales history

Get off to the best start with everything from a little help on which SumUp Card Reader is best for you to information on pricing, fees and delivery.

Pricing & Order

Order & Pricing

SumUp Invoices

The SumUp POS Lite is a countertop point of sale system that pairs with your SumUp Card Reader so you can easily accept payment all in one place.

POS Lite

Security & privacy

Security & Privacy

SumUp Connect is a loyalty system that brings more customers into your store with one powerful marketing program. 

SumUp Connect