Link to new domains in Apple Business Essentials
To use Managed Apple IDs, you must verify the domains you want to use, or you can use the reserved domain. Domains (also known as domain names) designate the larger organization rather than an individual member. Domain names are registered and must be globally unique.
Verified domains
The verification process ensures that your organization is the one that has authority to modify the domain name service (DNS) records for your domain. For example, if you wanted to use betterbagcompany.com as your domain, you would need to add a specific TXT record to your domain name server’s zone file within 14 calendar days of beginning the verification process (which begins when you select the Verify button).
Only domains that haven’t been verified by another company can be added. If your domain can’t be verified, additional steps must be taken to resolve which company is associated with a disputed domain name. See About domain conflicts.
Important: You have only 14 calendar days to complete the verification process or you must start over. Depending on the network configuration, it may take some time for DNS changes to appear. Make sure you’ve notified the person in your company who can write records to your DNS entries (for example, your DNS administrator) so the task can be completed before the expiration.
Reserved domains
If you’re unable to verify your domain, you can use the reserved domain. The reserved domain:
Is a domain that Apple generates automatically
Is based on the website that you used when you successfully signed up
Can’t be edited or removed
Doesn’t require the organization to verify the domain
For example, if you enrolled using the website www.betterbagcompany.com, the reserved domain name would be betterbagcompany.appleid.com. If multiple organizations use the same domain, an incremental number is added to the name, such as betterbagcompany2.appleid.com.
Add a domain
In Apple Business Essentials, sign in with a user that has the role of Administrator or People Manager.
Select your name at the bottom of the sidebar, select Preferences
, then select Accounts 
.Select Edit in the Domains section, select Add Domain, add the domain you want to use, then select Continue.
Select Verify next to the domain.
A TXT record appears and you receive an email saying that the domain you selected is now attempting to be verified. You have 14 calendar days to complete the verification process. The TXT record contains a string with random characters at the end, for example, “apple-domain-verification=RaNdOmLeTtErSaNdNuMbErS.”
Select Copy.
If you’re using one of the following services, see their documentation for pasting a TXT record into a zone file or contact your DNS administrator:
GoDaddy: Add a TXT record
Microsoft Azure: Add a TXT or MX record to verify you own the domain
NameCheap: How do I add TXT/SPF/DKIM/DMARC records for my domain?
Network Solutions: How Do I Manage DNS and Advanced DNS Records?
Select “Text (TXT) Records or Sender Policy Framework (SPF) Records.”
If you have a different domain registrar, contact them for information on how to add a TXT record to your DNS zone file.
After you’ve added the DNS TXT record successfully, finalize the verification process.
Note: Only domains that haven’t been claimed by another organization can be added. For disputes, contact the organization directly that’s claimed the domain you want to use. See About domain conflicts.
Finalize the verification process
In Apple Business Essentials, sign in with a user that has the role of Administrator or People Manager.
Select your name at the bottom of the sidebar, select Preferences
, then select Accounts .Locate the domain whose TXT record was added, then select Check Now.
If the TXT record has been correctly entered into the DNS zone file, the shown record and Copy button should change to Verified ownership.
After a domain has been successfully verified, you can remove the TXT record from the zone file.