Pay What You Want is enabled on a product-by-product basis.
That's all it should take! However, there can sometimes be glitches based on issues with custom themes. Read on for troubleshooting tips. Your success and is directly tied to the success of this plugin. We are dedicated to making sure this works for you.
First: Make sure that the item(s) you wish your customers to input a price for are properly tagged as PWYW.
Second: If the tag is in fact correct, go to your website, then navigate page/item you want to set the price as PWYW, right click and inspect the price. Copy the tag, (it should be .price-field or #price-label or something similar to that). Then from the Shopify dashboard navigate to:
var priceLabels = document.querySelectorAll(".price-field, .price, .product-single__price, .product-price, #productPrice, #ProductPrice");
Third: If you cannot find pwyw.liquid in your Snippets, there was an issue installing the application and I suggest you try reinstalling it.
Fourth: If the above steps fail to work, e-mail support at email@example.com