use set ID like we do with the other entities

app/models/item.rb

@@ -11,9 +11,10 @@
 class Item < ApplicationRecord
   belongs_to :issue
 
-  validates :description, presence: true
+  validates_presence_of :id, :description
   validates :unit_price, numericality: { greater_than_or_equal_to: 0 }
-  
+  self.primary_key = :id
+
   # Sync all employees, typically triggered by a scheduled task or manual sync request
   def self.sync
     ItemSyncJob.perform_later(full_sync: true)

app/services/item_sync_service.rb

@@ -24,7 +24,7 @@ class ItemSyncService < SyncServiceBase
 
   # Map relevant attributes from the QBO Employee to the local Employee model
   def process_attributes(local, remote)
-    local.qbo_id  = remote.id
+    local.id  = remote.id
     local.description = remote.description
     local.unit_price = remote.unit_price
   end