Market comes pre-installed with both "Buy Now" and "Add to Cart" options & buttons on the product details page. You will want to use one, and disable the other. Here's what they do:
The "Buy Now" option will transfer the customer immediately to Paypal once clicked.
The "Add to Cart" option adds the product to the customer's shopping cart, and lets the customer continue shopping for more items.
Which should you use?
Generally, if it's possible your customer may order multiple items, you should use the "Add to Cart" option (and disable the "Buy Now" option).
If you know that your customer will ONLY be buying a single item, then you should use the "Buy Now" option (and disable the "Add to Cart" option).
Here are instructions for disabling the option you don't need. Don't worry, it may LOOK confusing, but just follow the instructions step-by-step and you'll find it's easy.
The first set of instructions is how to disable the "Buy Now", the second is how to disable the "Add to Cart".
(Make sure that you only disable one of the following two — NOT both.)
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How to Disable the "Buy Now" option
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Open the file "single.php" for editing in your WordPress administration Theme Editor.
Change the second line by removing the SECOND asterisk/slash combo "*/". (Make sure you take out the correct one.) Your resulting code should look like:
Change the second line by removing the FIRST slash/asterisk combo "/*". (Again, make sure you take out the correct one.) Your resulting code should look like:
Change the second line by removing the FIRST slash/asterisk combo "/*". Again, make sure you take out the correct one. Your resulting code should look like: