You can sell group merchandise through the member portal by setting up categories and items in the store app of the administrator app. Note that only admins with “Store Manager” permission can access and manage the store management app.
In general you want to configure categories for the types of items that you will sell in your store, like Apparel, Jacket, Hat, Accessory, etc. After you have created appropriate categories you will add listings for the various products you have.
For each product you will be able to provide image of the product, specify the name and description, category, and even a UPC and SKU if you use them. When the basic product is defined then you need to setup inventory. The inventory is what the store will use to show the items in the member portal for members to buy. When members purchase items the inventory is automatically reduced to reflect the purchase. It is up to you to ensure that the inventory matches what you actually have for inventory.
You can also specify a promotion code for your products. The code it tied to the product and is part of the product setup.
See the individual knowledge base documents on setting up categories and products for more details.
Payments from product sales will be collected by Middletwin and paid out to your group. You will want to setup your payout preferences. Also, each charge incurs a 3.46% processing fee, you will need to setup if you want to pass this on to the customer or absorb this cost.
The last bit of configuration is to setup an email address that is notified of each purchase. This is setup by the account administrator in the account settings.