I have an Adobe Analytics account but not able to sign into Dynamic Tag Management from the Adobe Analytics global navigation on the top.
You can ask your Account Manager to write in to email@example.com on your behalf with all the details and the support consultant will be glad to assist you.
Who is the DTM admin? I have full access to Adobe Analytics. Can someone please make me the admin? Our Account Manager from Adobe is firstname.lastname@example.org. Can you please tell him how to make me the admin?
Analytics account is not connected to DTM Account. A DTM admin would have to add you as a user in their DTM account and then you will receive your credentials.
I'd recommend contacting a DTM Admin in your company to get access.