Sales Price and Compare-at price

With Shopify, you can set a compare at price that is higher than the regular price. Facebook has it the other way round. Here you can set a sale_price (see their spec).

In your feed, once the "Set sale prices (using the Shopify compare-at prices)" feature is selected, the following will happen

1. Shopify’s compare at price will be mapped to Facebook’s price field
2. Shopify’s price will be mapped to facebook’s sale_price field
3. The Facebook sale_price_effective_date will be set as follows (relative to the time the feed is requested):
   1. Start date will be set to be 24 hours in the past
   2. End date will be set to be 7 days in the future

[Update] sale_price_effective_date

• sale_price_effective_date is not required anymore. The sale price will be active as long as it is there: you can see more info here: https://developers.facebook.com/docs/marketing-api/catalog/reference
• this attribute will be removed.

If you don't enter sale dates, any items with a sale_price remains on sale until you remove their sale price

[Update] Set sale prices (using the Shopify compare-at prices) is available with our free plans.