Hello Hetal,
Thank you for your patience throughout this process.
Just to give you a heads up regarding your ongoing case, I received a confirmation from our Support team that the Microsoft Cloud Partner Program team will handle the concern with regards to Private Access Code for MS-600 exam with that being said, I would recommend contacting the MCPP team to obtain the said access code.
You may refer to this link Get support in Partner Center - Partner Center | Microsoft Learn to contact Microsoft Cloud Partner Support to get further assistance.
Let me know if you are able to receive the code.
If this solves your problem, please indicate “Yes” to the question and the thread will automatically be closed and locked. In case we do not receive a response, the thread will be closed and locked after one business day. Please be advised that after the case is locked, we will no longer be able to respond, even through Private Message. If the resolution provided did not resolve the issue, please post a new question.
Regards,