Move Microsoft 365 licences from reseller to Microsoft direct

Question

Move Microsoft 365 licences from reseller to Microsoft direct

greg 0

I currently have two Microsoft Exchange Online mailboxes for my own domain.

These are currently supplied and billed by the UK reseller names.co.uk as an “Exchange Online Essentials – 2 User” subscription.

The names.co.uk subscription is due to expire on 21 September 2026. I would like to stop purchasing the Microsoft licences through names.co.uk and, if possible, purchase the appropriate licences directly from Microsoft instead.

My understanding is that the two mailboxes are already hosted within Microsoft 365/Exchange Online. I therefore do not want to create a new Microsoft 365 tenant or migrate the mailboxes to another tenant.

What I want to achieve is:

• retain the existing Microsoft 365 tenant

• retain both existing mailboxes and all their email

• retain dowanside.co.uk as the domain

• retain calendars and contacts

• continue using Outlook and my existing mobile email setup

• replace the names.co.uk-supplied licences with licences purchased directly from Microsoft

• have no interruption whatsoever to incoming or outgoing email

An independent Microsoft 365 migration specialist has advised me that, because the mailboxes are already in Office 365, it may be possible simply to change the licensing arrangement rather than migrate anything.

Could you please confirm whether I can purchase Microsoft licences directly for these same two users within the existing tenant, assign those licences before the names.co.uk subscription expires, and then allow the names.co.uk licences to expire without affecting the tenant, domain, mailboxes or their contents?

I would also be grateful if you could tell me:

Which Microsoft licence I should purchase for these two mailboxes.

How I establish whether I have the necessary administrator access to the existing tenant.

Whether names.co.uk needs to release or change anything before I can purchase licences directly.

The correct sequence for activating the new licences and ending the names.co.uk subscription so that there is no period during which either mailbox is unlicensed or unavailable.

Whether any DNS, MX or other domain settings need to change. My preference is that these remain untouched if the mailboxes are staying within the existing Microsoft tenant.

I do not want anything cancelled, transferred or migrated at this stage. I am seeking confirmation of the correct procedure first so that I can make the change safely before 21 September 2026.

Many thanks,

Greg

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1 answer

Your answer

Answer 1

Hi Greg,

Based on what you've described, this appears to be a licensing change rather than a migration.

In principle, if your mailboxes are already hosted within the existing Microsoft 365 tenant, you should be able to purchase replacement licenses in that same tenant (given that you have admin rights), assign them to the same user accounts before the names.co.uk subscription expires, and continue using the existing tenant, domain, mailboxes, email data, calendars, and contacts without needing to migrate them elsewhere.

Regarding your specific questions:

1/ Which license should you purchase?

The appropriate license depends on your specific requirements and the services currently included in your existing subscription. To help you evaluate the available Microsoft 365 and Exchange Online plans, you may find the following Microsoft licensing information useful: Microsoft 365 Business Plans.

Alternatively, you may wish to contact Microsoft Sales Support directly. They can review your requirements and help identify the most appropriate subscription for your two mailboxes before you make any purchase.

2/ How do you verify administrator access?

Try signing in to the Microsoft 365 Admin Center. If you can access the admin portal, you likely have administrative access. If you cannot access the portal, you may need to contact names.co.uk to determine whether they currently manage the tenant on your behalf and to request the administrative control or provide you with the appropriate administrator permissions.

3/ Does names.co.uk need to release anything?

That depends on the reseller arrangement. Some resellers simply provide licensing, while others also manage the tenant. Names.co.uk would be the best party to confirm whether any reseller relationship, administrative permissions, or subscription ownership changes are required before purchasing directly from Microsoft.

4/ What is the safest sequence?

Verify administrative access to the existing tenant.
Purchase the replacement licenses in the same tenant.
Assign the new licenses to the existing user accounts.
Confirm that both mailboxes are functioning normally.
Ensure the reseller subscription is not renewed, or coordinate with names.co.uk regarding its termination, once the replacement licenses are in place.

5/ Will DNS, MX, SPF, Autodiscover, or other domain settings need to change?

If the domain remains connected to the same Microsoft 365 tenant and the mailboxes stay in that tenant, DNS and mail routing records would typically remain unchanged. However, you should verify the final plan with the reseller before making changes.

From the scenario you've described, there would generally be no need to create a new tenant, transfer data, or migrate mailboxes. However, I would recommend confirming the reseller-specific requirements with names.co.uk before making any changes so that the transition can be completed smoothly before 21 September 2026.

I hope this information is helpful. Feel free to let me know if you have any questions.