diff --git a/models/reporting/xero/schema.yml b/models/reporting/xero/schema.yml
index 294d49a..35a5ebc 100644
--- a/models/reporting/xero/schema.yml
+++ b/models/reporting/xero/schema.yml
@@ -1455,6 +1455,14 @@ models:
         data_tests:
           - not_null
 
+      - name: contact_name
+        data_type: text
+        description: "The name of the contact associated with the deal."
+
+      - name: id_deal_contact_name
+        data_type: text
+        description: "A concatenation of the deal ID and contact name."
+
       - name: accounting_financial_l1_aggregation
         data_type: text
         description: "The Level 1 aggregation for Financial reporting."
diff --git a/models/reporting/xero/xero__sales_monthly_trends.sql b/models/reporting/xero/xero__sales_monthly_trends.sql
index f0ddf5d..b3b1c06 100644
--- a/models/reporting/xero/xero__sales_monthly_trends.sql
+++ b/models/reporting/xero/xero__sales_monthly_trends.sql
@@ -1,20 +1,25 @@
 with
     int_xero__sales_monthly_trends as (
         select * from {{ ref("int_xero__sales_monthly_trends") }}
-    )
+    ),
+    int_xero__contacts as (select * from {{ ref("int_xero__contacts") }})
 select
-    document_issued_month_utc as document_issued_month_utc,
-    fiscal_year as fiscal_year,
-    previous_fiscal_year as previous_fiscal_year,
-    document_status as document_status,
-    document_type as document_type,
-    id_deal as id_deal,
-    accounting_financial_l1_aggregation as accounting_financial_l1_aggregation,
-    accounting_financial_l2_aggregation as accounting_financial_l2_aggregation,
-    accounting_financial_l3_aggregation as accounting_financial_l3_aggregation,
-    amount_wo_taxes_in_gbp as amount_wo_taxes_in_gbp,
-    previous_month_amount_wo_taxes_in_gbp as previous_month_amount_wo_taxes_in_gbp,
-    previous_year_amount_wo_taxes_in_gbp as previous_year_amount_wo_taxes_in_gbp,
-    ytd_amount_wo_taxes_in_gbp as ytd_amount_wo_taxes_in_gbp,
-    previous_year_ytd_amount_wo_taxes_in_gbp as previous_year_ytd_amount_wo_taxes_in_gbp
-from int_xero__sales_monthly_trends
+    smt.document_issued_month_utc as document_issued_month_utc,
+    smt.fiscal_year as fiscal_year,
+    smt.previous_fiscal_year as previous_fiscal_year,
+    smt.document_status as document_status,
+    smt.document_type as document_type,
+    smt.id_deal as id_deal,
+    c.contact_name as contact_name,
+    smt.id_deal || '-' || c.contact_name as id_deal_contact_name,
+    smt.accounting_financial_l1_aggregation as accounting_financial_l1_aggregation,
+    smt.accounting_financial_l2_aggregation as accounting_financial_l2_aggregation,
+    smt.accounting_financial_l3_aggregation as accounting_financial_l3_aggregation,
+    smt.amount_wo_taxes_in_gbp as amount_wo_taxes_in_gbp,
+    smt.previous_month_amount_wo_taxes_in_gbp as previous_month_amount_wo_taxes_in_gbp,
+    smt.previous_year_amount_wo_taxes_in_gbp as previous_year_amount_wo_taxes_in_gbp,
+    smt.ytd_amount_wo_taxes_in_gbp as ytd_amount_wo_taxes_in_gbp,
+    smt.previous_year_ytd_amount_wo_taxes_in_gbp
+    as previous_year_ytd_amount_wo_taxes_in_gbp
+from int_xero__sales_monthly_trends smt
+left join int_xero__contacts c on smt.id_deal = c.id_deal