Sage 50 Error the Serial Number you have Entered is not Valid

With its amazing tools and functions- The Sage 50 software has been able to attract the attention of the corporate and the accounting world all over the world. Irrespective of whether the organization is a small startup or a growing business, the Sage 50 software can help it streamline its regular accounting activities with effortless ease. However, we should keep in mind that, very much like any other software, Sage 50 also has its fair share of errors and issues.

Many of our esteemed readers have informed us that they have faced the Sage 50 Error: ‘The serial number you have entered is not valid’ while installing or upgrading the Sage 50 application. If you are also getting this error message of late and are looking for easy solutions, you are just at the right place! In this blog, we will discuss an easy, step by step method to fix this commonly reported issue. Simply go through this blog till the end, perform the steps discussed here and fix this issue for good!

Before proceeding to the troubleshooting section, let’s have a look at why this issue occurs in the first place!

Read More : Resolved Activation Key for Sage 50 is Invalid or Could not be Read

What are the Causes of the Sage 50 Error Serial Number you have Entered is not Valid’?

There may be various reasons behind this issue. Some of them are listed below-

• Entering incorrect Sage 50 serial number during installation.
• Using an incorrect account ID 
• Trying to activate an older version of the Sage 50 software
• Trying to activate another version of Sage 50
• The security settings of the system are preventing the Sage 50 software from activation

Steps to Fix “The Serial Number you Have Entered is Not Valid” During Installation or Upgrade

Follow the step by step instructions to resolve this issue:

Step1: Verify the Version of Sage 50 you want to Activate

• Open the Sage 50 application
• Navigate to the main window
• Go to the Help section
• The screen will display the version of Sage 50
• Note down the version, year and release
• If the information does not match the Sage version you wish to activate, make sure to open the right Sage version
• Install the correct Sage version
• Try to activate it and check if you are getting the error message

Step 2: Ensure the Account ID is Correct

• Verify the account ID before entering the same during the installation/updation
• If all these details are found to be correct, proceed to the activation process
• check if you are getting the error message

Step 3: Confirm the Serial Number

Here, you will need to confirm the serial number from the Email communications sent from Sage. For this, please perform the steps given below-

• Note down the email ID to which the serial number and the activation key were mailed from Sage
• Verify the serial number from this mail 
• Make sure that the proper setup wizard is used for the Sage 50 version you want to install
• Verify if the correct download link is used to download the installation file

Step 4: Activate the Program Manually

Here is a step-by-step procedure for the activation –

• After the Sage 50 version is installed successfully, click the Finish tab
• Open the Sage 50 program
• Navigate to the Help option
• Click on Sage 50 Activation
• Now select the Licensing and Subscription option
• Click on the Activate Now tab
• The Activation Form window will be displayed on your screen
• Please provide your valid company information in the space provided
• Once complete, click OK to proceed
• The Activation Complete window will appear on your screen

Also Read: How to Activate Sage 50 2021 Version or Serial Number

Final Words

We hope the troubleshooting steps mentioned above would help you a great deal to fix the Sage 50 Error: ‘The serial number you have entered is not valid’ on your system. In case you are having any issues while executing the steps outlined above and are having any queries, we recommend you speak with some experienced Sage professionals.

Frequently Asked Questions (FAQs)