bulk upload setup error for scheme

app/services/bulk_upload/lettings/row_parser.rb

@@ -182,6 +182,7 @@ class BulkUpload::Lettings::RowParser
 
   validate :validate_scheme_related
   validate :validate_scheme_exists
+  validate :validate_scheme_data_given
 
   validate :validate_location_related
   validate :validate_location_exists
@@ -261,7 +262,13 @@ private
 
   def validate_scheme_exists
     if field_4.present? && scheme.nil?
-      errors.add(:field_4, "The management group code is not correct", category: :setup)
+      errors.add(:field_4, "The management group code is not correct")
+    end
+  end
+
+  def validate_scheme_data_given
+    if bulk_upload.supported_housing? && field_4.blank?
+      errors.add(:field_4, "The management group code is not correct", category: "setup")
     end
   end
 

spec/services/bulk_upload/lettings/row_parser_spec.rb

@@ -298,10 +298,13 @@ RSpec.describe BulkUpload::Lettings::RowParser do
 
     describe "#field_4" do
       context "when nullable not permitted" do
+        let(:bulk_upload) { create(:bulk_upload, :lettings, user:, needstype: 2) }
         let(:attributes) { { bulk_upload:, field_1: "2", field_4: nil } }
 
         it "cannot be nulled" do
-          expect(parser.errors[:field_4]).to be_present
+          setup_errors = parser.errors.select { |e| e.options[:category] == "setup" }
+
+          expect(setup_errors.find { |e| e.attribute == :field_4 }).to be_present
         end
       end