inventoryAdjustQuantities - not changed the available inventory by use of delta.

[Av18]

query = <<~QUERY
  mutation {
    inventoryAdjustQuantities(
      input: {reason: "correction", name: "available", changes: [{inventoryItemId: "gid://shopify/InventoryItem/#{inventory_item_id}", delta: #{available}, locationId: #{location}}]}
    ) {
      inventoryAdjustmentGroup {
        createdAt
        reason
        changes {
          name
          delta
        }
      }
      userErrors {
        field
        message
      }
    }
  }
QUERY

Here delta i've got -23. This means that the available quantity of that product in inventory will decrease by 23 from 158, and will update to 135. However, the available quantity will not be updated.
Have any solution for this kind of problem?

[Av18 · Accepted solution]

Solution:-

Previously I've sent #{location} -> gid://shopify/Location/location_id like this,  Now I changed it to a string format like:- "gid://shopify/Location/location_id"