Sup0108 A Deployment Or Update Operation Is Already In Progress Best

Fixing SUP0108: "A Deployment or Update Operation is Already in Progress" – The Ultimate Guide

If you manage software updates in Microsoft Configuration Manager (Current Branch), you have likely encountered the dreaded SUP0108 error.

The full error message usually reads:

"SUP0108: A deployment or update operation is already in progress (best)". Fixing SUP0108: "A Deployment or Update Operation is

This error halts your Windows Server Update Services (WSUS) synchronization and prevents you from deploying critical patches. It is frustrating because it often appears without an obvious cause, locking the Software Update Point (SUP) into a phantom state of "busy."

In this guide, we will break down exactly what this error means, why it happens (the "best" context), and provide step-by-step solutions to clear the lock and get your updates moving again. "SUP0108: A deployment or update operation is already

3. Use Salesforce CLI to Monitor

sfdx force:mdapi:listdeployments -u <target_org>

Or with the new sf CLI:

sf deploy metadata list -o <target_org>

If an active deployment ID appears, cancel it: This error halts your Windows Server Update Services

sfdx force:mdapi:cancel -i <deploymentId> -u <target_org>

Overview

Error SUP0108 occurs when a system (typically a Salesforce environment, CI/CD pipeline, or managed package installer) detects that another deployment or update operation is already running against the same target organization or component. The platform blocks concurrent operations to prevent state corruption or partial updates.

Solution 4: Check for Database Blocking (SUSDB)

If the above fails, you likely have a locked database.

  1. Open SQL Server Management Studio (SSMS) connected to the WSUS database instance.
  2. Run this T-SQL to find blocking processes:
SELECT
    session_id,
    blocking_session_id,
    wait_type,
    command,
    text
FROM sys.dm_exec_requests
CROSS APPLY sys.dm_exec_sql_text(sql_handle)
WHERE blocking_session_id > 0
  1. If you see a blocking_session_id, kill it (replace X with the session ID):
KILL X
  1. After killing the blocker, run the WSUS stored procedure to reset internal tasks:
USE SUSDB
EXEC spDeleteUpdate @localUpdateID = 0, @bIsLocPublished = 0

4. Step-by-step resolution

5. Alternative Approach (Simple Retry with Exponential Backoff)

If queuing is not desired, return a clear error and let the client retry:


  "error": "sup0108",
  "message": "A deployment or update operation is already in progress",
  "retry_after_seconds": 30

Client then uses exponential backoff (30s, 60s, 120s).