Shoppingfeed includes a powerful data manipulation tool (Rules tool) that allows you to easily make changes, both large and small, to any of our product data, and do so based on any number of conditions you create.
Below is some basic quantity manipulation
> Set quantity to 1, 2, 3, or 100... for items that are always In Stock
> Quantity threshold rule
Setting quantity to 1, 2, 3, or 100, etc for items that are always In Stock
Let's say we do not track inventory in Shopify and our products are always in stock. We simply replace a dynamic field {quantity} with a static value 99 in square brackets to always send 99 for stock. 
Preview a random SKU
Quantity threshold rule
In this example, we will simply set the value 0 for stock if we have just 1 in Shopify.
IF {quantity} in Shopify Equals To 1
THEN replace {quantity} with [0] on all channels
This way we can avoid some overselling in between source feed & channel updates.
Have questions?
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