diff --git a/app/services/imports/lettings_logs_import_service.rb b/app/services/imports/lettings_logs_import_service.rb
index c70da3ab4..1d5ddfca3 100644
--- a/app/services/imports/lettings_logs_import_service.rb
+++ b/app/services/imports/lettings_logs_import_service.rb
@@ -246,6 +246,7 @@ module Imports
 
       apply_date_consistency!(attributes)
       apply_household_consistency!(attributes)
+      create_organisation_relationship!(attributes)
 
       lettings_log = save_lettings_log(attributes, previous_status)
       compute_differences(lettings_log, attributes)
@@ -681,5 +682,13 @@ module Imports
         0
       end
     end
+
+    def create_organisation_relationship!(attributes)
+      parent_organisation_id = attributes["owning_organisation_id"]
+      child_organisation_id = attributes["managing_organisation_id"]
+      return if parent_organisation_id == child_organisation_id
+
+      OrganisationRelationship.find_or_create_by!(parent_organisation_id:, child_organisation_id:)
+    end
   end
 end
diff --git a/spec/fixtures/imports/logs/00d2343e-d5fa-4c89-8400-ec3854b0f2b4.xml b/spec/fixtures/imports/logs/00d2343e-d5fa-4c89-8400-ec3854b0f2b4.xml
index e9835d1e1..8bc6a935c 100644
--- a/spec/fixtures/imports/logs/00d2343e-d5fa-4c89-8400-ec3854b0f2b4.xml
+++ b/spec/fixtures/imports/logs/00d2343e-d5fa-4c89-8400-ec3854b0f2b4.xml
@@ -413,7 +413,7 @@
     <HCNUM>655</HCNUM>
     <MANHCNUM>655</MANHCNUM>
     <LAHA/>
-    <MANINGORGID>1</MANINGORGID>
+    <MANINGORGID>2</MANINGORGID>
     <HBTYPE1/>
     <HBTYPE2/>
     <HBTYPE3>3</HBTYPE3>
diff --git a/spec/fixtures/imports/logs/0b4a68df-30cc-474a-93c0-a56ce8fdad3b.xml b/spec/fixtures/imports/logs/0b4a68df-30cc-474a-93c0-a56ce8fdad3b.xml
index 3faacf28b..38cef1339 100644
--- a/spec/fixtures/imports/logs/0b4a68df-30cc-474a-93c0-a56ce8fdad3b.xml
+++ b/spec/fixtures/imports/logs/0b4a68df-30cc-474a-93c0-a56ce8fdad3b.xml
@@ -413,7 +413,7 @@
     <HCNUM>N/A</HCNUM>
     <MANHCNUM>N/A</MANHCNUM>
     <LAHA/>
-    <MANINGORGID>1</MANINGORGID>
+    <MANINGORGID>2</MANINGORGID>
     <Q28same1>false</Q28same1>
     <HBTYPE1/>
     <HBTYPE2/>
diff --git a/spec/services/imports/lettings_logs_import_service_spec.rb b/spec/services/imports/lettings_logs_import_service_spec.rb
index acb9d9dd4..7850008a1 100644
--- a/spec/services/imports/lettings_logs_import_service_spec.rb
+++ b/spec/services/imports/lettings_logs_import_service_spec.rb
@@ -11,6 +11,7 @@ RSpec.describe Imports::LettingsLogsImportService do
   let(:fixture_directory) { "spec/fixtures/imports/logs" }
 
   let(:organisation) { FactoryBot.create(:organisation, old_visible_id: "1", provider_type: "PRP") }
+  let(:managing_organisation) { FactoryBot.create(:organisation, old_visible_id: "2", provider_type: "PRP") }
   let(:scheme1) { FactoryBot.create(:scheme, old_visible_id: "0123", owning_organisation: organisation) }
   let(:scheme2) { FactoryBot.create(:scheme, old_visible_id: "456", owning_organisation: organisation) }
 
@@ -24,6 +25,7 @@ RSpec.describe Imports::LettingsLogsImportService do
 
     allow(Organisation).to receive(:find_by).and_return(nil)
     allow(Organisation).to receive(:find_by).with(old_visible_id: organisation.old_visible_id).and_return(organisation)
+    allow(Organisation).to receive(:find_by).with(old_visible_id: managing_organisation.old_visible_id).and_return(managing_organisation)
 
     # Created by users
     FactoryBot.create(:user, old_user_id: "c3061a2e6ea0b702e6f6210d5c52d2a92612d2aa", organisation:)
@@ -80,6 +82,13 @@ RSpec.describe Imports::LettingsLogsImportService do
         .to change(LettingsLog, :count).by(4)
     end
 
+    it "creates organisation relationship once" do
+      expect(logger).not_to receive(:error)
+      expect(logger).not_to receive(:warn)
+      expect { lettings_log_service.create_logs(remote_folder) }
+        .to change(OrganisationRelationship, :count).by(1)
+    end
+
     context "when there are status discrepancies" do
       let(:lettings_log_id5) { "893ufj2s-lq77-42m4-rty6-ej09gh585uy1" }
       let(:lettings_log_id6) { "5ybz29dj-l33t-k1l0-hj86-n4k4ma77xkcd" }