Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Dear @Nepali Prakash,
Good day! Welcome to Microsoft Q&A forum!
Based on your description, I understand that you want to add your custom domain to new tenant but it is already associated with another Microsoft 365 tenant and you need the correct Microsoft escalation process to release it.
You also mentioned that you have a new tenant, you should be able to access the support portal and submit your ticket without further issues.
Ticket Support: Log in the Microsoft 365 Admin Center using the newly created admin account > Support > Help & Support. You can raise support ticket at: https://admin.microsoft.com/#/support/requests
- When you open a support ticket, please make sure to turn off the Support Assistant (AI) in the help panel.
- Several customers have reported issues when the Support Assistant is turned on the system sometimes fails to display the “Contact Support” option.
- Simply switch Support Assistant > Off, then type your issue description. Once the AI is off, the “Contact Support” button will appear normally, allowing you to submit a ticket directly.
- After clicking on "Help & Support" button, you can type "I need agent support via phone or email". After that, you can click on "Contact support".
- Choose contact method: "Phone"
- Fill all the information in this contact support details, please describe your situation carefully so they will have enough information to help you.
- Finally, click on "Contact me"
- After completing them, you will receive an email appointment for a meeting to review this issue professionally together.
- For more details, you could refer to this article: Get support for Microsoft 365 for business
Please do not be concerned about submitting a support ticket from a different tenant; this is the standard procedure for matters related to tenant access or domain verification. Once the ticket has been submitted and the issue described, the staff will forward it to the data protection team. They will then carry out the process to verify domain ownership and assist you in removing the domain from the previous tenant once verification is complete.
Kindly let me know when there are updates or if you need further assistance. Any updates you’re able to share would be really helpful.
I'm here and happy to help! Thank you for your kindness and patience!
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