the Manager API — the custom field “Type” is not returned in the API response. The API only gives itemCode, itemName, unitName, salePrice. The Type field is only visible in the Manager UI.
Share a screenshot of the transaction form you’re reading through the API. Also, ensure the custom field you’re referring to is present in the transaction and has a value.
Examine the response JSON. You should see the custom field 2 with key Type UUID for the two items in your transaction.