Yes, LitExtension allows you to perform AmeriCommerce multistore migration. However, you need to ensure that each of your multiple stores is displayed on a “Multi-store Configuration” step of Migration Wizard. If not, most probably the Access Token you’ve entered isn’t correct to access some of the stores.
In this case, you need to edit your Access Token (Tools > Apps & Addons > API Apps & Integrations) by putting a checkmark in “Tokens Access All Stores” box.
In case you have any other questions, please reach out to us via: