Booking / Teams Email identity not matching

Bookings, Teams, and Outlook all use the email identity of the Microsoft 365 account that owns the Bookings calendar and the Teams sign-in. When the email people know is different from the account used to sign in, the result is exactly what is described: meetings and joins coming from or trying to use the “wrong” identity.

To untangle this, there are two main pieces to align:

1. Align the business/Bookings email with the address that should appear to customers.
2. Align the Teams sign-in and calendar with the same business/personal email that is used with customers.

1. Check which email Bookings is using

When a new Bookings calendar is created in Teams:

• The Business or department name entered is used to create the sending email address for booking invites (for example, ******@domain.com).
• That email address is fixed for that Bookings mailbox; changing the display name later does not change the email address.

If the Bookings calendar was created under an account that uses a different email than the one customers know, the invites will continue to come from that original address.

If the wrong identity is baked into the existing Bookings calendar, the clean fix is:

• Create a new Bookings calendar in Teams using the correct business/personal email identity as the owning account.
• Share and use that new calendar going forward for customer bookings.

Steps (from Teams):

1. In Teams, go to Apps → search for Bookings → Add (if not already added).
2. Select Get started.
3. Choose New booking calendar.
4. Enter a Business or department name that matches the email identity customers should see; this will be used to create the Bookings sending address.
5. Complete setup and use this calendar for future bookings.

2. Align Teams sign-in with the email customers use

If Teams is being signed into with a different account (for example, an old nonprofit alias or a default *.onmicrosoft.com domain), then:

• Teams meetings and Bookings invites will be tied to that account.
• Joining from the app will default to that identity.

To align this:

• Connect the business/personal email to Teams so that Teams sign-in and calendar match the email used with customers.

Microsoft provides guidance for connecting an existing business email to Teams so that:

• Users can sign in to Teams with the business email.
• Teams, Outlook, and Bookings send meeting invitations from that same email address.

This connection ensures that the email identity customers see in Bookings, Teams, and Outlook is consistent with the address they use to contact the user.

3. Handling multiple Microsoft accounts on the same email

If there are multiple Microsoft accounts tied to the same email (for example, a personal account and a work/school account), a “Which account do you want to use?” prompt may appear. This can contribute to confusion about which identity is being used.

To reduce this confusion:

• Consider renaming the personal Microsoft account by changing its primary alias to a different email address.
• This keeps the login identities distinct and makes it easier to choose the correct one when signing into Teams or Bookings.

Renaming is done by going to the Manage how you sign in section of the Microsoft account and setting a different alias as primary.

4. Practical path forward

Given the scenario:

1. Decide which email address should be the public-facing one for Bookings and Teams meetings (likely the personal Gmail or a business email customers already use).
2. Ensure that email is the identity used to:
   • Own the Bookings calendar (create a new one if necessary).
   • Sign into Teams for scheduling and joining meetings.
3. If the same email is shared by multiple Microsoft accounts, rename one of them so that each Microsoft account has a distinct primary alias.

Once these are aligned, Bookings invites, Teams meeting joins, and customer communication will all use the same consistent email identity.

References:

• Set up a booking calendar for a business or department in Microsoft Teams
• Shared Bookings Frequently Asked Questions (FAQ)
• Integrating your business email with Microsoft Teams
• Which account do you want to use?