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The Payments menu allows you to set up your merchant gateway settings so that you can charge users for posting listings on your site. If you are not going to be charging for listings, simply check the "no" selection under the "Charge for Listings?" menu and you do not need to proceed any further with this menu. Otherwise, you will want to check "yes" and set up the appropriate Payment Type(s).
<tip c w>IMPORTANT: Please be sure to run some test listings through your PayPal and / or credit card merchant prior to launching your site. This is to ensure that your settings have been entered correctly in the admin and the your account has been set up properly at the merchant's site.</tip>