How to Resolve Sage 50 "Already Logged In" Error: A Practical Fix Guide That Actually Works
If you are using Sage 50 often, the chances are you've had this message at least once.
"Another user is already logged in" or
"Sage 50 is already logged in on this computer"
And the worst part? You have to know there's nobody else connected to your account.
This isn't the usual signification that Sage isn't working properly. It's the result of Sage is thinking that a user's session continuing to be active. It could be due an incorrect stoppage, interruption in the network or a background program that didn't finish properly.
The good news: in the majority of cases, this error is fixable without reinstalling Sage or calling supportor - If you can identify the issue causing it.
Let's get it broken down properly.
What Does the "Already Logged In" Error Really Mean?
Sage 50 uses session and lock files to monitor who is accessing the company's information. If everything shuts down properly this data is deleted instantly.
The error occurs in the following situations:
Sage closes unexpectedly
The system crash or reboots
Network connectivity suffers
A user logs off incorrectly
Sage processes continue to run in the background
In short, Sage believes a user session is always open, even if it's not.
Common Situations Where This Error Appears
This mistake is typically seen in one of these situations:
Sage is opening Sage after a power cut
Switching users on the system
Accessing sage 50 accounting customer support 50 with a multi-user configuration
Open the same company's files twice
Logging into Windows after a forced Windows update
Remote desktop sessions ending abruptly
Knowing when it's happening helps determine how to resolve it.
Step 1: Make Sure Sage Is Fully Closed Everywhere
Before trying any technical fixes be sure to follow the rules, but do it correct.
Check on the Same Computer
A restart will end hidden background processes faster than you'd imagine.
Check Other Computers (Multi-User Setup)
In the event that Sage was installed on multiple systems:
For other users, ask them to log out
You should ensure that no one is running Sage run down or in idle
Restart the server as needed
There are many "already logged in" errors result from open sessions that were not opened on a different computer.
Step 2: Terminate the Sage Processes that are running in Task Manager.
Sometimes Sage looks as if she's closed, yet isn't.
How to Do It
Press Ctrl + Shift + Esc
Open Task Manager
Find:
Peachw.exe
PeachwServer.exe
PeachTree.exe
Select each of them, and click End Task.
Once done, reopen Sage 50.
This will solve the issue for a huge number of users.

Step 3: Check and Remove Temporary Lock Files
This is the most effective solution for when the error doesn't want to disappear.
Sage creates locks in the data folder of the company.