diff --git a/app/jobs/get_usps_proofing_results_job.rb b/app/jobs/get_usps_proofing_results_job.rb
index c4d2e722cf2..be5e17a31de 100644
--- a/app/jobs/get_usps_proofing_results_job.rb
+++ b/app/jobs/get_usps_proofing_results_job.rb
@@ -103,7 +103,7 @@ def check_enrollment(enrollment)
     enrollment_outcomes[:enrollments_checked] += 1
 
     response = proofer.request_proofing_results(
-      enrollment.unique_id, enrollment.enrollment_code
+      enrollment,
     )
   rescue Faraday::BadRequestError => err
     # 400 status code. This is used for some status updates and some common client errors
diff --git a/app/services/usps_in_person_proofing/mock/proofer.rb b/app/services/usps_in_person_proofing/mock/proofer.rb
index 10b5be38681..a7a55e9d136 100644
--- a/app/services/usps_in_person_proofing/mock/proofer.rb
+++ b/app/services/usps_in_person_proofing/mock/proofer.rb
@@ -40,7 +40,7 @@ def request_facilities(_location, is_enhanced_ipp)
         end
       end
 
-      def request_proofing_results(_unique_id, _enrollment_code)
+      def request_proofing_results(_enrollment)
         JSON.parse(Fixtures.request_passed_proofing_results_response)
       end
     end
diff --git a/app/services/usps_in_person_proofing/proofer.rb b/app/services/usps_in_person_proofing/proofer.rb
index ccfd883c0ef..ae5555e666b 100644
--- a/app/services/usps_in_person_proofing/proofer.rb
+++ b/app/services/usps_in_person_proofing/proofer.rb
@@ -73,19 +73,18 @@ def request_enroll(applicant, is_enhanced_ipp)
     end
 
     # Makes HTTP request to retrieve proofing status
-    # Requires the applicant's enrollment code and unique ID.
+    # Requires the applicant's InPersonEnrollment.
     # When proofing is complete the API returns 200 status.
     # If the applicant has not been to the post office, has proofed recently,
     # or there is another issue, the API returns a 400 status with an error message.
-    # @param unique_id [String]
-    # @param enrollment_code [String]
+    # param enrollment [InPersonEnrollment]
     # @return [Hash] API response
-    def request_proofing_results(unique_id, enrollment_code)
+    def request_proofing_results(enrollment)
       url = "#{root_url}/ivs-ippaas-api/IPPRest/resources/rest/getProofingResults"
       request_body = {
-        sponsorID: sponsor_id,
-        uniqueID: unique_id,
-        enrollmentCode: enrollment_code,
+        sponsorID: enrollment.sponsor_id.to_i,
+        uniqueID: enrollment.unique_id,
+        enrollmentCode: enrollment.enrollment_code,
       }
 
       faraday.post(url, request_body, dynamic_headers) do |req|
diff --git a/spec/services/usps_in_person_proofing/proofer_spec.rb b/spec/services/usps_in_person_proofing/proofer_spec.rb
index 000dac22c58..d8ede579ca7 100644
--- a/spec/services/usps_in_person_proofing/proofer_spec.rb
+++ b/spec/services/usps_in_person_proofing/proofer_spec.rb
@@ -403,6 +403,7 @@ def expect_facility_fields_to_be_present(facility)
         'applicant',
         unique_id: '123456789',
         enrollment_code: '123456789',
+        sponsor_id: '314159265359',
       )
     end
 
@@ -410,13 +411,33 @@ def expect_facility_fields_to_be_present(facility)
       stub_request_token
     end
 
+    context 'when the user is going through enhanced ipp' do
+      let(:request_body) do
+        {
+          sponsorID: applicant.sponsor_id.to_i,
+          uniqueID: applicant.unique_id,
+          enrollmentCode: applicant.enrollment_code,
+        }
+      end
+      let(:faraday_response) { double('faraday_response', body: 'blah blah') }
+      let(:faraday) { Faraday.new }
+      before do
+        allow(Faraday).to receive(:new).and_return(faraday)
+        allow(Rails.cache).to receive(:read).and_return('some fake token')
+      end
+      it 'sends the correct information in the request body' do
+        expect(faraday).to receive(:post).with(
+          anything, request_body,
+          anything
+        ).and_return(faraday_response)
+        subject.request_proofing_results(applicant)
+      end
+    end
+
     it 'returns failed enrollment information' do
       stub_request_failed_proofing_results
 
-      proofing_results = subject.request_proofing_results(
-        applicant.unique_id,
-        applicant.enrollment_code,
-      )
+      proofing_results = subject.request_proofing_results(applicant)
       expect(proofing_results['status']).to eq 'In-person failed'
       expect(proofing_results['fraudSuspected']).to eq false
     end
@@ -424,10 +445,7 @@ def expect_facility_fields_to_be_present(facility)
     it 'returns passed enrollment information' do
       stub_request_passed_proofing_results
 
-      proofing_results = subject.request_proofing_results(
-        applicant.unique_id,
-        applicant.enrollment_code,
-      )
+      proofing_results = subject.request_proofing_results(applicant)
       expect(proofing_results['status']).to eq 'In-person passed'
       expect(proofing_results['fraudSuspected']).to eq false
     end
@@ -436,10 +454,7 @@ def expect_facility_fields_to_be_present(facility)
       stub_request_in_progress_proofing_results
 
       expect do
-        subject.request_proofing_results(
-          applicant.unique_id,
-          applicant.enrollment_code,
-        )
+        subject.request_proofing_results(applicant)
       end.to raise_error(
         an_instance_of(Faraday::BadRequestError).
         and(having_attributes(
@@ -469,10 +484,7 @@ def expect_facility_fields_to_be_present(facility)
         subject.token
         proofing_results = nil
         travel_to(expires_at) do
-          proofing_results = subject.request_proofing_results(
-            applicant.unique_id,
-            applicant.enrollment_code,
-          )
+          proofing_results = subject.request_proofing_results(applicant)
         end
 
         expect(WebMock).to have_requested(:post, "#{root_url}/oauth/authenticate").twice