You import your orders and you get an error message like this one

- Unable to import inactive product "XXX-YYY" – Please enable this product before importing the order"
Or
- unable to import the product unavailable for sale
Or
- Unable to import a product with minimal quantity greater than 1

The module is based on PrestaShop classes (the core of PrestaShop) to proceed with importing orders, forcing to stick to PrestaShop operating principles that will prevent importing a product in an order in some cases;

To be “importable” the product must be activated (1) and available for sale (2):

Also, the minimum quantity must be equal to 1 because it corresponds to the regular functioning of marketplaces that sell products at retail (some exceptions apply, which is not the subject here).

You will check either in Quantity tab (1) or in Variation tab (2) whether the product is provided, and that the orderable quantity is equal to 1:

1)

2)