Building, integrating, or customizing apps and workflows within Microsoft Teams using developer tools and APIs
Hi @Sandy Hernandez ,
Thank you for raising question to Microsoft Q&A.
According to this issue, may I know if you have tried to sign into Teams via https://teams.microsoft.com/ ? (Teams web version).
If you cannot sign-in on the web version, consider trying with suggest steps from Shabana, or you could contact your IT department for further check.
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