Module single quantity will be required if you want to sell digital products. The shopping cart will not count the number of the same product, even if the user clicks the "Add to Cart" repeatedly. Yes, it should be so.

Prospective buyers may be thinking that "Why buy the same product, while our own certainly can duplicate these products". In the end, we can only pray that they will not duplicate the digital products that have been purchased for resale without contributing to us. Oh, fate! May God always bless you!

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