![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(128, 8%, 22%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EA%3C/text%3E%3C/svg%3E)
Microsoft Teams | Microsoft Teams für Unternehmen | Registrieren und Anmelden | Andere
Zusätzliche Anmelde- oder kontobezogene Probleme innerhalb von Microsoft Teams for Business
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(99.2, 26%, 19%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ED%3C/text%3E%3C/svg%3E)
We use a translation service to assist our users. We apologize for any grammatical errors.
Hi Michael,
This usually happens when we use our old credentials to log in. To avoid this issue, we need to use the username we created when we upgraded to Teams Essentials. (Attached is a screenshot for reference)
The purchase and subscription information can also be accessed when signed in to the admin center (with the new credentials), https://aka.ms/admincenter, > Billing, > Your products.
I hope this helps.
Best wishes