Tracking product quantity via REST webhooks

[kostyabek]

We are building a custom admin app for products synchronization from Shopify with our system. Currently, the problem we have encountered is that inventory_levels/connect and inventory_levels/update webhook events contain values for "available" field only and all others are null. Thus, we cannot identify which product quantity is updated. How can we tackle this?

inventory_levels/update example:

{"admin_graphql_api_id":null,"inventory_item_id":null,"location_id":null,"available":7,"updated_at":null}