diff --git a/db/migrate/20240404074651_add_assigned_to_index.rb b/db/migrate/20240404074651_add_assigned_to_index.rb
new file mode 100644
index 000000000..2f39465a6
--- /dev/null
+++ b/db/migrate/20240404074651_add_assigned_to_index.rb
@@ -0,0 +1,8 @@
+class AddAssignedToIndex < ActiveRecord::Migration[7.0]
+  def change
+    remove_index :sales_logs, name: "index_sales_logs_on_created_by_id", column: :created_by_id
+    remove_index :lettings_logs, name: "index_lettings_logs_on_created_by_id", column: :created_by_id
+    add_index :sales_logs, :assigned_to_id
+    add_index :lettings_logs, :assigned_to_id
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index c3997c6a1..03a1a7c9a 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[7.0].define(version: 2024_04_04_072714) do
+ActiveRecord::Schema[7.0].define(version: 2024_04_04_074651) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
 
@@ -270,7 +270,6 @@ ActiveRecord::Schema[7.0].define(version: 2024_04_04_072714) do
     t.integer "irproduct"
     t.string "old_id"
     t.integer "joint"
-    t.bigint "created_by_id"
     t.integer "retirement_value_check"
     t.integer "tshortfall_known"
     t.integer "sheltered"
@@ -321,8 +320,9 @@ ActiveRecord::Schema[7.0].define(version: 2024_04_04_072714) do
     t.integer "partner_under_16_value_check"
     t.integer "multiple_partners_value_check"
     t.integer "assigned_to_id"
+    t.bigint "created_by_id"
+    t.index ["assigned_to_id"], name: "index_lettings_logs_on_assigned_to_id"
     t.index ["bulk_upload_id"], name: "index_lettings_logs_on_bulk_upload_id"
-    t.index ["created_by_id"], name: "index_lettings_logs_on_created_by_id"
     t.index ["location_id"], name: "index_lettings_logs_on_location_id"
     t.index ["managing_organisation_id"], name: "index_lettings_logs_on_managing_organisation_id"
     t.index ["old_id"], name: "index_lettings_logs_on_old_id", unique: true
@@ -496,7 +496,6 @@ ActiveRecord::Schema[7.0].define(version: 2024_04_04_072714) do
     t.datetime "created_at", null: false
     t.datetime "updated_at", null: false
     t.bigint "owning_organisation_id"
-    t.bigint "created_by_id"
     t.string "purchid"
     t.integer "type"
     t.integer "ownershipsch"
@@ -688,8 +687,9 @@ ActiveRecord::Schema[7.0].define(version: 2024_04_04_072714) do
     t.integer "partner_under_16_value_check"
     t.integer "multiple_partners_value_check"
     t.integer "assigned_to_id"
+    t.bigint "created_by_id"
+    t.index ["assigned_to_id"], name: "index_sales_logs_on_assigned_to_id"
     t.index ["bulk_upload_id"], name: "index_sales_logs_on_bulk_upload_id"
-    t.index ["created_by_id"], name: "index_sales_logs_on_created_by_id"
     t.index ["managing_organisation_id"], name: "index_sales_logs_on_managing_organisation_id"
     t.index ["old_id"], name: "index_sales_logs_on_old_id", unique: true
     t.index ["owning_organisation_id"], name: "index_sales_logs_on_owning_organisation_id"