Accessing Outlook on the web for business using organizational credentials.
Hello ATA TRAVEL TOURS,
Thank you for sharing the details.
Do you receive a specific error message or error code? If possible, please provide a full screenshot of the error. Please also confirm whether the affected account is a personal Microsoft account or a Microsoft 365 work or school account provided by an organization.
Before sharing the screenshot, please hide your complete email address and any other personal or sensitive information.
The exact error message is important because successfully signing in to the Microsoft account does not always confirm that an active Exchange mailbox is available. Once I receive the error details, I can better understand whether the issue may be related to the account type, Exchange Online license, mailbox provisioning, or another configuration.
Kind regards,