If you are using Sage 50 regularly, chances have you've encountered this error at least once:
"Another user is already logged in" or
"Sage 50 is already logged in on this computer"
The most frustrating part? You are aware that there's no one else registered.
This error usually doesn't mean Sage is in trouble. It's the result of Sage believes that a user session is still active. This is often due to an unintentional closure, a network failure or the background process didn't close properly.
The good news: almost always this issue could be fixed without reinstalling Sage or contacting supportand only provided you know what's that's causing it.
Let's get it broken down properly.
Sage 50 uses session and lock files to monitor who is accessing the company's information. When everything is shut off completely and the data is removed immediately.
The error occurs when:
Sage closes unexpectedly
The system crashes or restarts
Network connectivity suffers
A user logs out incorrectly
Sage processes still operate in the background
In short, Sage believes a user session is still open--even when it isn't.
This error will usually be observed when you encounter one of these scenarios:
Sage's opening Sage after a power interruption
Switching users on a shared system
Accessing Sage 50 from a multi-user configuration
Opening the same company's data twice
Logging in following a forced Windows update
Remote desktop sessions ending abruptly
Knowing the time it first appears can help determine the best way to address the issue.
Before you attempt technical fixes try the obvious. However, do it right.
Close Sage 50
Restart your system
Log back in and try opening Sage again
A restart is a way to clear the background processes faster than you'd hope.
You have Sage installed, but Sage was installed on several systems:
For other users, ask them to log out
Be sure to ensure that nobody has Sage downsized or idle
Restart the server if needed
Some "already logged in" errors occur due to open sessions being closed on a different computer.
Sometimes Sage seems to look closed, but she's not.
Press Ctrl + Shift + Esc
Open Task Manager
Find:
Peachw.exe
PeachwServer.exe
PeachTree.exe
Select all of them and click End Task
Once done, reopen Sage 50.
This alone will fix the issue for a significant number of users.
This is the most efficient fix when the error refuses to go away.
Sage makes lock files in the data folder of the company. If the files remain there after an error in exit, Sage stops new logins.
The typical location is:
C:\Sage\Peachtree\Company
or it's a shared network drive you're using multi-user access.
Within the folder of the company search for files that have extensions like:
.lck
.dta
.pta
.tmp
In the event that Sage is not functioning It is possible to eliminate these lock file.
Important:
Be sure to never delete or delete files while Sage is running and running. This applies to all systems.
After deleting them close Sage and log into the system again.
In multi-user environments Sage depends on database background functions. If these services cease to function, login errors occur.
Press Windows + R
Type services.msc
You can look for:
Sage 50 Database Connection Manager
Sage 50 SmartPosting
Right-click - Restart
When Sage is restarted, let it sit for about a minute before opening Sage again.
This is particularly important especially if Sage software is running on a server.
Sometimes, the error might be due to mismatches in permissions, not authentic logins.
Log in as Administrator (if possible)
Verify access rights of the user
Ensure the user isn't restricted to just one login
Confirm the company file isn't set to single-user mode
If Sage had a crash while switching between users, it may still be keeping the session of the previous user.
Sage 50 is highly sensitive to interruptions to networks.
If your system:
Utilizes Wi-Fi instead of LAN
Has unstable connectivity
The server frequently disconnects
There are more login-related errors that you'll encounter often.
Make use of wired LANs for Sage access
Do not open company files via VPN unless they are configured correctly
It is important to ensure that both systems are on the same network
Drops in network connections cause ghost sessions. Sage cannot get the signal to close them.
To rule out network problems:
Save the company's file on your local drive
Directly open it in Sage

If it is able to open without error, the issue is unrelated to data, but not network-related.
This test helps to determine the cause, instead of thinking about the possible cause.
It seems simple enough, but permission blocks can result in misleading login mistakes.
Select the right click Sage 50 shortcut
Choose Run as administrator
If this does not resolve the issue, adjust your system permissions to prevent recurrence of the issue.
Some older Sage versions may be prone to issues with session locks, particularly following Windows updates.
Check:
Your current sage accounting support (http://king-wifi.win//index.php?title=yilmazdemir7188) version
Support for your Windows build
Installing the most up-to-date update frequently can fix any recurring "already logged in" errors automatically.
Avoid quick fixes if:
Another user is genuinely registered
Sage is mid-process (posting, backup, restore)
The server wasn't checked.
Enforcing deletions even when Sage is in use can result in the loss of the data of a company.
If you're not sure, pause and ensure before acting.
If none of the above methods work, the issue may involve:
User profiles that are corrupt
Database of company damaged
Incorrect configuration of the server client
At this point professionals Sage assistance is suggested to ensure data integrity.
The Sage 50 "already logged in" error can be a little scary. However, in most, it's just Sage is holding onto an account which wasn't closing properly.
Follow the procedure carefully:
Confirm no active users
Clear background processes
Make sure you remove lock files in a safe and secure manner.
Stabilize the network
If the issue is fixed properly and the error doesn't recur unless there's another improper shutdown.
Respect and cleanliness go well with Sage.