Amazon Squarespace integration that keeps one stock count

Every stock change we know about goes out to Amazon, so a Squarespace sale lowers what Amazon shows. The return trip is where the rule sits. Where you pack and post an item yourself, Amazon’s own adjustments come back to us and carry on to Squarespace. Where Amazon warehouses and ships it, we do not touch that figure. Which of your items are meant to agree depends entirely on that split.

The reason is that Amazon knows its own shelves. What happens inside those warehouses, from receipts to damages to returns, never comes past us, so writing our number over Amazon’s would be a guess dressed up as a sync. Leaving that count where it is means the items it covers are not supposed to match your Squarespace figure. A book number that quietly disagrees with a warehouse is worse than none.

Squarespace will hold 60 characters of SKU. Amazon takes 20, which is the tightest limit we deal with anywhere. Since matching happens on the SKU, anything longer is truncated on the way to Amazon and then pairs with nothing. Codes built out of words reach twenty faster than you would think, so read your longest ones before you connect rather than after a count has drifted.

The timing gap is on the Squarespace side and it is narrow. Squarespace tells us about orders as they happen, but not about a quantity you edit yourself, so we check for that every couple of minutes. If you adjust a number in Squarespace and expect Amazon to know within seconds, that is the one case on this pair where you will be waiting.

QuickSync can return supported carrier and tracking details to eligible merchant-fulfilled Amazon orders. Amazon manages FBA shipments. Supported shipment updates return to the order they originated from, after the fulfillment store supplies them.