PowerShell Max Sessions Exceeded
Understanding and resolving the concurrent session limit error.
Last updated: 2025-01-15 Troubleshooting
Overview
Error Message
"Max number of PowerShell sessions exceeded. Please wait for other jobs to finish and try again later"
Session Limit
3
Maximum Concurrent Sessions
This is a system design limitation
Actions That Consume Sessions
Operations Using PowerShell Sessions
Audit Functions
Running audits on mailboxes and resources
Get-List Operations
- • User Mailboxes
- • Distribution Lists
- • Shared Mailboxes
- • Rooms & Equipment
Preprocessing Tasks
- • User Mailboxes
- • Distribution Lists
- • Shared Mailboxes
- • Rooms & Equipment
Other Operations
- • Permission Migration
- • GALSync Push
Resolution
✓
Wait for Sessions to Complete
The only solution is to wait for active sessions to complete or terminate one session before retrying the operation. No configuration changes are available to increase the session limit.
System Limitation
The 3-session limit is a design restriction of the platform. Plan your
operations to avoid running more than 3 concurrent PowerShell-based tasks.