Sorry for the late reply, your question is indeed beyond my capabilities. So if you are in a hurry, we recommend you to seek help from online support or Find support phone numbers by country or region.
Also attached are some suggestions for reference only:
- Add custom properties: Use the Microsoft Graph API to add custom properties to user profiles that can store Bulgarian names. For example, you can use extensionAttributes to store additional information.
- Update user profile: Update user profiles with Microsoft Graph API to store Bulgarian names in custom attributes.
- Customize search solution and integrate with Microsoft Teams.
Reference: https://learn.microsoft.com/en-us/graph/add-properties-profilecard
If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.