All
Rule 1: Create inventories into delivery centers. If item already created, the inventories will be updated.
Rule 2: If a new vendorItemIds is sent to an already registered DDC (Delivery Center) , this vendorItemIds will be included without changing the list of other already registered vendorItemIds or DDC on inventory. See examples of this rule below:
Adjusting
The customer CAN NOT buy more items than have in inventoryCount
Messaging
The customer CAN buy more items than have in inventoryCount but Front end will show a label with an alert about this.