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

Employee Directory header: A to Z index tabs with D picked out in antique brass, a manila staff directory folder, and a blueprint Android phone showing an incoming call from Daniel Price in Cardiology.
November 12, 2026

Employee Directory App: The Staff Directory in Every Phone's Contacts

If you've been asked for an employee directory app for staff phones, the Contacts app may already be it. How to put your Entra ID, Google Workspace or CSV directory into iPhone and Android Contacts, with caller ID, read-only control and leavers removed.

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Blog header reading Add External Contacts to the GAL, Suppliers and contractors in Outlook, showing a Global Address List of staff with an empty slot being filled by one of three external people, a supplier, a site worker in a hard hat and a technician.
November 12, 2026 Guides

How to Add External Contacts to the Global Address List in Microsoft 365

Add suppliers, contractors and partners to your Microsoft 365 Global Address List as mail contacts, one at a time or in bulk from a CSV, and get them onto staff phones with Contactzilla's Microsoft 365 Org Contacts importer.

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Blog header reading Hide a User from the GAL in Outlook, Microsoft 365 and hybrid, showing a Global Address List with one faded person and a Hide from address list panel with the toggle turned On.
November 11, 2026 Guides

How to Hide a User from the Global Address List (GAL) in Microsoft 365, Including Hybrid

Hide users, shared mailboxes, groups and contacts from the Global Address List in the Exchange admin center or PowerShell, fix the hybrid error with msExchHideFromAddressLists, and keep leavers off staff phones.

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Blog header reading Update the Global Address List in Outlook and Microsoft 365, with the Outlook logo, on a dark petrol blueprint background with a technical drawing of a clock dial labelled OAB every 8 hours.
November 10, 2026 Guides

How to Update the Global Address List in Outlook (and Why Changes Take Time to Show)

How to refresh the Global Address List in Outlook, where admins change someone's details, why changes take up to a day or more to show, and how to get updates onto staff phones.

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Banner reading Sync Outlook Contacts to every Android phone, with Outlook-blue people figures, a blueprint outline of the Android robot and an Android phone showing a shared Skyline Contacts list.
November 5, 2026 Guides

How to Sync Outlook Contacts with Android (Microsoft 365), Including Shared Company Contacts

How to sync Outlook contacts with an Android phone, what we found when we tested a shared mailbox, what to check when contacts don't arrive, and how to give every staff phone one read-only list.

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Vendor list template header: a green-bar computer printout reading Vendor List Template, Free Google Sheet and CSV, with dot-matrix icons for supplier types.
November 4, 2026

Vendor List Template: Free Vendor and Supplier Contact List

A free vendor and supplier contact list template for Google Sheets and CSV, with the 24-hour lines, account numbers and escalation contacts most templates leave out, and columns that import into a shared address book on staff phones.

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