Fix permiss dat error in sage 50

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When using Sage 50, encountering the PERMISS.DAT Error can be a confusing and frustrating experience. This error revolves around the permissions file, which is crucial for the software’s operations. It can lead to disruptions in your workflow, prevent you from accessing certain parts of the software, or even halt your accounting processes altogether. Understanding its causes and knowing how to fix it can save time and prevent potential data loss or further complications.

Causes of PERMISS.DAT Error in Sage 50

Several factors can lead to the PERMISS.DAT error in Sage 50. Identifying the root cause is the first step towards resolving the issue effectively.

Corrupted PERMISS.DAT File

This file contains essential data about user permissions and settings within Sage 50. If it becomes corrupted, the software might not start or function correctly.

Improper Software Shutdown

Not closing Sage 50 properly or experiencing a crash can corrupt the PERMISS.DAT file.

Insufficient User Permissions

If the user trying to access Sage 50 doesn’t have the necessary permissions on the computer, this error can occur.

Solutions to Resolve PERMISS.DAT Error in Sage 50

Resolving the PERMISS.DAT error involves several steps, ranging from simple to more complex solutions. It’s crucial to follow these instructions carefully to avoid further issues.

Solution #1: Restore the PERMISS.DAT File from Backup

If you have a recent backup that includes the PERMISS.DAT file, restoring this file can quickly resolve the issue.

  1. Close Sage 50 if it’s open.
  2. Navigate to the folder where your backup is stored.
  3. Locate the backup file that contains the PERMISS.DAT file.
  4. Copy the PERMISS.DAT file from the backup.
  5. Go to the directory where Sage 50 stores its data files, typically found in C:\Sage\Peachtree\Company\[YourCompanyName].
  6. Paste the copied PERMISS.DAT file, replacing the existing one.
  7. Open Sage 50 and check if the issue is resolved.

Solution #2: Run Sage 50 as Administrator

Running the software with administrator privileges can resolve permission-related issues.

  1. Locate the Sage 50 shortcut on your desktop.
  2. Right-click on the shortcut and select "Run as administrator".
  3. Confirm any prompt asking for permission to make changes to your device.
  4. Check if the error persists.

Solution #3: Repair the Sage 50 Installation

A corrupted installation of Sage 50 can cause various issues, including the PERMISS.DAT error. Repairing the installation can often resolve these problems.

  1. Go to Control Panel > Programs and Features.
  2. Find Sage 50 in the list of installed programs and select it.
  3. Click on "Repair" or "Change" and then "Repair" when prompted.
  4. Follow the on-screen instructions to complete the repair process.
  5. Restart your computer and open Sage 50 to check if the issue has been resolved.

Solution #4: Set Correct Permissions for the Sage 50 Folder

Incorrect folder permissions can prevent Sage 50 from accessing the needed files.

  1. Navigate to the Sage 50 installation folder, usually located in C:\Program Files (x86)\Sage\Peachtree.
  2. Right-click on the folder and choose "Properties".
  3. Go to the "Security" tab and click on "Edit" to change permissions.
  4. Make sure that the user running Sage 50 has "Full Control".
  5. Apply the changes and click "OK".
  6. Open Sage 50 and verify if the error is fixed.


How do I prevent the PERMISS.DAT error from happening in the future?

Ensure Sage 50 is always shut down properly and perform regular backups, including the PERMISS.DAT file. Additionally, maintaining your computer’s health, such as avoiding hard shutdowns, can prevent file corruption.

Can I delete the PERMISS.DAT file to solve the issue?

Deleting the PERMISS.DAT file is not recommended as it contains critical data for Sage 50’s operation. Attempt repairing or restoring the file from a backup instead.

What should I do if none of the solutions work?

If after attempting all solutions the error persists, consider contacting a professional IT specialist with experience in Sage 50. They can perform a deeper analysis and possibly identify and resolve less common causes of the PERMISS.DAT error.

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