I'm trying to keep inventory updated automatically through the new sell API using bulkCreateOrReplaceInventoryItem however as shown in this: https://imgur.com/a/nAOpl2A
When I update the items quantity using bulkCreateOrReplaceInventoryItem I see that it's been updated using getInventoryItem. However the quantity has not changed. What am I doing wrong here? I don't see any other endpoints for updating inventory quantity. We don't use a pickup location nor do we have inventory locations so it seems that we're setting the quantity in the right place in the request body.