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Our servers can host up to Miva Merchant v4.24. For anyone not using the this version of Miva Merchant software, we recommend you upgrade. For those customers who are upgrading from Version 2x or 3x, you will need to contact Technical Support for a Miva Merchant Upgrade Licence.

You will need FTP access to your site to complete the backup and upgrade.

Please make sure you read through these directions completely before starting your Backup or Upgrade.

You may be required to remove all 3rd party modules before successfully completing your upgrade to Miva Merchant v4.xx. Because of this, you should back up ALL of your Miva Merchant files before starting. Until the modules are removed, Miva Technical Support cannot help with any issues that they might possibly be caused by these modules during the upgrade process.

Removing third party modules will delete any of the data that they have been used to create. For example, if you are using an Inventory Tracking module, it will remove all inventory information from the store. If you are using a Coupon module, any Coupons that you have created will be deleted.

There are ways that you can prevent being forced to uninstall these modules in order to upgrade:

  1. Contact us and make sure that all of the permissions are set correctly on the server for the upgrade. The permissions on the Miva Merchant script directory need to have write access for the owner of the Miva Merchant files AND the ROOT user.
  2. Contact the vendor of the modules that you have installed. They will most likely have modules that are compatible with the new version of Miva Merchant. During the upgrade, Miva Merchant will prompt you for the installation of new modules at which time the 3rd party upgrades can be uploaded and installed. Chances are that you will be upgrading them eventually, so its a good idea to do this DURING the initial upgrade.

Backing Up Your Storefront

Before going through this backup/upgrade, make sure you pack your Store Data Files

  1. On your local computer, create a folder called Backup. Inside this folder, create two more folders: One called Web and one called Data.
  2. FTP to your website
  3. In your sites Web Directory, there should be a Merchant2 folder. This will contain .mv files. Take a copy of this folder and all of its contents and place it in the Web folder on your local computer
  4. In your sites Data Directory, there should be another Merchant2 folder. This will contain .dbf and .mvx files. Take a copy of this folder and all of its contents and place it in the Data folder on your local computer
  5. FTP to your website


You now have a complete backup of your storefront - please proceed with your upgrade.

Upgrading Your Storefront

  1. After you have finished the above steps including backing up your storefront, create a support ticket asking for the upgrade. We will make the necessary configuration changes to begin, and we will do the basics of the upgrade. Once completed, our staff will notify you in the ticket for you to proceed with the next step.
  2. Open up a web browser and goto: www.YOURDOMAIN.com/Merchant2/upgrade.mvc
    (This may be different depending on where your host has Miva Merchant installed.)
  3. Follow the on-screen directions to complete the upgrade.
  4. For Version 2.x or 3.x, you will be asked for a upgrade license number. For Version 4.x, no licence is required.

Note: for version 1.x the procedure is different, and you you need to do an nimport. Please contact Miva for more information.

Please note there is a $25 upgrade licence fee.


You have now successfully upgraded your Miva Merchant store to v4.xx (latest version).