Transfer stock to another businesses

Example request

{
  "item_id": "item_01HC3J1VVVM05YCTS61G7V3KC6",
  "business_id": "business_01HC3J1VVVM05YCTS61G7V3KC6",
  "quantity": 1,
  "receiving_item_id": "item_01J8HJFH3NG17EGVF0N5GHMPM9"
}