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Tips, tricks, and guides on managing business contacts at scale.

Contactzilla Migration Tools showing iPhone contact address books and options to export, move, compare and manage contacts.
June 19, 2026

Export, Move and Compare iPhone Contacts with Contactzilla Migration Tools

Discover how to export contacts from iPhone as CSV or vCard using Contactzilla Migration Tools. The post also explains how to move, compare, and clean up contacts across iCloud, Outlook, Google, CardDAV, and other address books.

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iPhone showing a CardDAV password prompt for a CArdDAV contacts account
May 20, 2026

Why does my iPhone keep asking for a CardDAV password?

Learn why your iPhone keeps asking for a CardDAV password, including wrong credentials, app-specific passwords, stale profiles, and MDM deployment issues. This guide explains where to check the account and how to fix the prompt.

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Header image for “What is CardDAV?” showing a CardDAV server syncing contact data to phones, a tablet and a laptop through a contact sync layer.
May 11, 2026

What Is CardDAV? Contact Sync Explained

CardDAV is an open protocol for syncing contacts between servers, devices and apps. This guide explains how CardDAV works, why it matters for shared address books, and how it compares with CalDAV, LDAP, Exchange ActiveSync and one-time contact imports.

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Workspace ONE and Contactzilla workflow for syncing business contacts to iPhones using a CardDAV mobileconfig profile.
May 1, 2026

Workspace One: How to Sync Contacts to iPhones

Learn how to sync Contactzilla shared contacts to iPhones using Workspace ONE UEM. This guide explains how to generate a CardDAV .mobileconfig profile, deploy it with Workspace ONE, and sync read-only business contacts to the native iPhone Contacts app.

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SCEP certificates in MDM diagram showing certificate distribution from cloud server to multiple mobile devices for secure authentication.
April 6, 2026

SCEP certificates in MDM: what they are and how enrolment works on iOS and Android

A SCEP certificate allows devices to automatically request and install identity certificates through MDM, enabling secure access to Wi-Fi, VPN, and other services without passwords. This guide explains what SCEP is, how enrolment works step by step, and how it’s used across iOS and Android environments.

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Illustration showing a SharePoint contact list on the left and the same contacts synced to an iPhone Contacts app on the right, demonstrating mobile contact sync.
April 6, 2026

How to Sync a SharePoint Contact List to iPhone

Learn how to sync a SharePoint contact list to iPhone so contacts appear in the native Contacts app and dialer. This guide explains common limitations, typical workarounds, and a more reliable approach using a sync layer to keep data consistent across devices.

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Contactzilla contact management dashboard on a laptop