How to troubleshoot login issues in Microsoft Teams?

To open a PDF in Teams for editing click on the message. Then in the options menu, choose More Actions and select Collaborate on PDF. The PDF will open in the Adobe Acrobat viewer in the Microsoft Teams application.

Microsoft Teams allows you to share files via Microsoft Teams. You can send around 250GB large files through Microsoft Teams. 

To restrict Zoom Workplace features to a pilot group, you must first create a dedicated Zoom group for your pilot users and then assign them the specific features you want to control within that group's settings. You can then enable or disable desired features for the group, or lock them at the group level to prevent individual users from changing them.

Rolling out Gmail (Google Workspace) org-wide sounds simple until you realize email is your company’s oxygen, if it slows down or fails, everything grinds to a halt. That’s why you never go live without a clear rollback and comms plan.

Rollback Plan

• Go Hybrid Before Full Cutover
• Run Gmail in parallel with your old mail system (Exchange, Zoho, Outlook, etc.) for at least a few days.
• Use a small pilot group first to monitor sync latency and deliverability before you flip the entire org.
• Keep DNS & MX Records Flexible
• When switching MX records to Google, set low TTL (Time to Live) — around 300 seconds.
• If Gmail causes delays or delivery errors, you can revert MX records back to the old provider almost instantly.
• Backup and State Capture
• Snapshot mailboxes before migration.
• Ensure your migration tool maintains rollback checkpoints.
• Define Clear Rollback Triggers
• Examples:
• 5% message delivery failure rate.
• 15% slower average send/receive latency.
• Authentication or IMAP sync issues across >10% of accounts.
• any of those happen, stop migrations and redirect traffic back to your legacy system.
• Prepare a Rollback Script / Plan B
• Store DNS rollback commands and admin console settings in a single doc.
• Disable Gmail logins temporarily via Google Admin if authentication or mail loops occur.

Comms Plan

• Internal IT / Support Teams
• Pre-rollout:
• Share runbooks, escalation channels, and known Gmail limitations (e.g., sync quota, label behavior).
• During issues:
• Centralize updates in Slack/Teams
• End Users / Employees
• Pre-rollout:
• Announce timelines, training resources, and FAQs
• If rollback happens:
• Use a simple update like:
• We noticed slower mail delivery after the Gmail upgrade. We’re reverting to the previous system temporarily while we stabilize performance. You’ll still have access to all your emails.
• Exec / Leadership
• Keep it non-technical:
• We observed degraded email latency post-migration. Rolled back to our prior mail infra within 15 minutes. No data loss, and root cause under review.

Utilizing Microsoft 365's integrated auditing and data export features—with a particular emphasis on the Microsoft Purview portal and possibly the Microsoft Graph Security API—is necessary to export Microsoft Teams logs to a Security Information and Event Management (SIEM) system with least-privilege scopes.