Hello @Bhavya,
Thank you for posting your query on Microsoft Q&A.
Based on your description, it seems you are unable to locate the "Add MPN ID to Verify Publisher" option for your app registration in Azure. This issue can arise if the application is associated with Azure AD B2C. As per the following document, the "Add MPN ID to Verify Publisher" feature is not supported for applications in Azure AD B2C:
Azure AD B2C Publisher Verification Limitations
Please confirm if your tenant is set up for Azure AD B2C. If this is not the case, we can investigate further offline. Kindly send me an email at AzCommunity@microsoft.com with the subject "Attn: Pothurajur" and include the following details in the email body:
- A link to this thread/post.
I hope this information is helpful. Please feel free to reach out if you have any further questions.
If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Thanks,
Raja Pothuraju.