The idea of the module is to enable customers to post a product on a barter type store, were they write down the items they are interested on receiving on exchange for the one they are posting. If the item or items that the customer wants are not within the database of the website (no one has posted any item relating), the module keeps "alert" so that when someone posts a new item that matches to the one the previous customer posted, they both are instantly notified that they have matching products for swap, if they both agree, then they proceed to do the swap by clicking on the swap button and exchanging infos.
There can be a further scenario were the second customer has the item the first customer is looking for, but the second customer is not interested on what the first customer has to offer...here the system will notify the first customer that there is a matching product for him, meanwhile the module will keep alert if there is a new item from a third customer that has a matching product for the second customer...this goes on until "the circle" is complete or closed, and the swap can begin between all of the involved customers.
Plese let me know if you need further explanation
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