diff --git a/macros/get_credit_memo_line_columns.sql b/macros/get_credit_memo_line_columns.sql
index 1434cbc..bbb985c 100644
--- a/macros/get_credit_memo_line_columns.sql
+++ b/macros/get_credit_memo_line_columns.sql
@@ -19,7 +19,7 @@
     {"name": "sales_item_class_id", "datatype": dbt_utils.type_int()},
     {"name": "sales_item_discount_amount", "datatype": dbt_utils.type_float()},
     {"name": "sales_item_discount_rate", "datatype": dbt_utils.type_float()},
-    {"name": "sales_item_item_id", "datatype": dbt_utils.type_int()},
+    {"name": "sales_item_item_id", "datatype": dbt_utils.type_string()},
     {"name": "sales_item_quantity", "datatype": dbt_utils.type_float()},
     {"name": "sales_item_service_date", "datatype": dbt_utils.type_timestamp()},
     {"name": "sales_item_tax_code_id", "datatype": dbt_utils.type_int()},
@@ -29,4 +29,4 @@
 
 {{ return(columns) }}
 
-{% endmacro %}
\ No newline at end of file
+{% endmacro %}
diff --git a/macros/get_estimate_line_columns.sql b/macros/get_estimate_line_columns.sql
index 94ca593..0b96752 100644
--- a/macros/get_estimate_line_columns.sql
+++ b/macros/get_estimate_line_columns.sql
@@ -22,7 +22,7 @@
     {"name": "sales_item_class_id", "datatype": dbt_utils.type_int()},
     {"name": "sales_item_discount_amount", "datatype": dbt_utils.type_float()},
     {"name": "sales_item_discount_rate", "datatype": dbt_utils.type_float()},
-    {"name": "sales_item_item_id", "datatype": dbt_utils.type_int()},
+    {"name": "sales_item_item_id", "datatype": dbt_utils.type_string()},
     {"name": "sales_item_quantity", "datatype": dbt_utils.type_float()},
     {"name": "sales_item_service_date", "datatype": dbt_utils.type_timestamp()},
     {"name": "sales_item_tax_code_id", "datatype": dbt_utils.type_int()},
diff --git a/macros/get_invoice_line_bundle_columns.sql b/macros/get_invoice_line_bundle_columns.sql
index f39a246..c8f294d 100644
--- a/macros/get_invoice_line_bundle_columns.sql
+++ b/macros/get_invoice_line_bundle_columns.sql
@@ -15,7 +15,7 @@
     {"name": "line_num", "datatype": dbt_utils.type_int()},
     {"name": "quantity", "datatype": dbt_utils.type_float()},
     {"name": "sales_item_account_id", "datatype": dbt_utils.type_int()},
-    {"name": "sales_item_item_id", "datatype": dbt_utils.type_int()},
+    {"name": "sales_item_item_id", "datatype": dbt_utils.type_string()},
     {"name": "sales_item_quantity", "datatype": dbt_utils.type_float()},
     {"name": "sales_item_tax_code_id", "datatype": dbt_utils.type_int()},
     {"name": "service_date", "datatype": dbt_utils.type_timestamp()},
diff --git a/macros/get_invoice_line_columns.sql b/macros/get_invoice_line_columns.sql
index a4b7fa7..7d06ed7 100644
--- a/macros/get_invoice_line_columns.sql
+++ b/macros/get_invoice_line_columns.sql
@@ -22,7 +22,7 @@
     {"name": "sales_item_class_id", "datatype": dbt_utils.type_int()},
     {"name": "sales_item_discount_amount", "datatype": dbt_utils.type_float()},
     {"name": "sales_item_discount_rate", "datatype": dbt_utils.type_float()},
-    {"name": "sales_item_item_id", "datatype": dbt_utils.type_int()},
+    {"name": "sales_item_item_id", "datatype": dbt_utils.type_string()},
     {"name": "sales_item_quantity", "datatype": dbt_utils.type_float()},
     {"name": "sales_item_service_date", "datatype": dbt_utils.type_timestamp()},
     {"name": "sales_item_tax_code_id", "datatype": dbt_utils.type_int()},
@@ -33,4 +33,4 @@
 
 {{ return(columns) }}
 
-{% endmacro %}
\ No newline at end of file
+{% endmacro %}
diff --git a/macros/get_refund_receipt_line_columns.sql b/macros/get_refund_receipt_line_columns.sql
index deef4bf..0db81a9 100644
--- a/macros/get_refund_receipt_line_columns.sql
+++ b/macros/get_refund_receipt_line_columns.sql
@@ -19,7 +19,7 @@
     {"name": "sales_item_class_id", "datatype": dbt_utils.type_int()},
     {"name": "sales_item_discount_amount", "datatype": dbt_utils.type_float()},
     {"name": "sales_item_discount_rate", "datatype": dbt_utils.type_float()},
-    {"name": "sales_item_item_id", "datatype": dbt_utils.type_int()},
+    {"name": "sales_item_item_id", "datatype": dbt_utils.type_string()},
     {"name": "sales_item_quantity", "datatype": dbt_utils.type_float()},
     {"name": "sales_item_service_date", "datatype": "date"},
     {"name": "sales_item_tax_code_id", "datatype": dbt_utils.type_int()},
diff --git a/macros/get_sales_receipt_line_columns.sql b/macros/get_sales_receipt_line_columns.sql
index 056afae..2c1b441 100644
--- a/macros/get_sales_receipt_line_columns.sql
+++ b/macros/get_sales_receipt_line_columns.sql
@@ -18,7 +18,7 @@
     {"name": "sales_item_class_id", "datatype": dbt_utils.type_int()},
     {"name": "sales_item_discount_amount", "datatype": dbt_utils.type_float()},
     {"name": "sales_item_discount_rate", "datatype": dbt_utils.type_float()},
-    {"name": "sales_item_item_id", "datatype": dbt_utils.type_int()},
+    {"name": "sales_item_item_id", "datatype": dbt_utils.type_string()},
     {"name": "sales_item_quantity", "datatype": dbt_utils.type_float()},
     {"name": "sales_item_service_date", "datatype": "date"},
     {"name": "sales_item_tax_code_id", "datatype": dbt_utils.type_int()},
diff --git a/models/stg_quickbooks__credit_memo_line.sql b/models/stg_quickbooks__credit_memo_line.sql
index 6b58b5f..f464592 100644
--- a/models/stg_quickbooks__credit_memo_line.sql
+++ b/models/stg_quickbooks__credit_memo_line.sql
@@ -35,7 +35,7 @@ final as (
         index,
         amount,
         cast(sales_item_account_id as {{ dbt_utils.type_int() }}) as sales_item_account_id,
-        cast(sales_item_item_id as {{ dbt_utils.type_int() }}) as sales_item_item_id,
+        sales_item_item_id,
         sales_item_quantity,
         sales_item_unit_price,
         cast(discount_account_id as {{ dbt_utils.type_int() }}) as discount_account_id,
diff --git a/models/stg_quickbooks__invoice_line.sql b/models/stg_quickbooks__invoice_line.sql
index c97faed..71941b2 100644
--- a/models/stg_quickbooks__invoice_line.sql
+++ b/models/stg_quickbooks__invoice_line.sql
@@ -35,7 +35,7 @@ final as (
         index,
         amount,
         cast(sales_item_account_id as {{ dbt_utils.type_int() }}) as sales_item_account_id,
-        cast(sales_item_item_id as {{ dbt_utils.type_int() }}) as sales_item_item_id,
+        sales_item_item_id,
         sales_item_class_id,
         sales_item_quantity,
         sales_item_unit_price,
diff --git a/models/stg_quickbooks__invoice_line_bundle.sql b/models/stg_quickbooks__invoice_line_bundle.sql
index cfd1978..debcd7a 100644
--- a/models/stg_quickbooks__invoice_line_bundle.sql
+++ b/models/stg_quickbooks__invoice_line_bundle.sql
@@ -35,7 +35,7 @@ final as (
         class_id,
         description,
         amount,
-        cast(sales_item_item_id as {{ dbt_utils.type_int() }}) as sales_item_item_id,
+        sales_item_item_id,
         cast(item_id as {{ dbt_utils.type_int() }}) as item_id,
         quantity,
         sales_item_quantity,
diff --git a/models/stg_quickbooks__refund_receipt_line.sql b/models/stg_quickbooks__refund_receipt_line.sql
index b3892e2..54d2d51 100644
--- a/models/stg_quickbooks__refund_receipt_line.sql
+++ b/models/stg_quickbooks__refund_receipt_line.sql
@@ -37,7 +37,7 @@ final as (
         description,
         cast(discount_account_id as {{ dbt_utils.type_int() }}) as discount_account_id,
         cast(sales_item_account_id as {{ dbt_utils.type_int() }}) as sales_item_account_id,
-        cast(sales_item_item_id as {{ dbt_utils.type_int() }}) as sales_item_item_id,
+        sales_item_item_id,
         sales_item_quantity,
         sales_item_unit_price,
         sales_item_tax_code_id
diff --git a/models/stg_quickbooks__sales_receipt_line.sql b/models/stg_quickbooks__sales_receipt_line.sql
index 0117145..d0b2501 100644
--- a/models/stg_quickbooks__sales_receipt_line.sql
+++ b/models/stg_quickbooks__sales_receipt_line.sql
@@ -36,7 +36,7 @@ final as (
         description,
         cast(discount_account_id as {{ dbt_utils.type_int() }}) as discount_account_id,
         cast(sales_item_account_id as {{ dbt_utils.type_int() }}) as sales_item_account_id,
-        cast(sales_item_item_id as {{ dbt_utils.type_int() }}) as sales_item_item_id,
+        sales_item_item_id,
         sales_item_tax_code_id,
         sales_item_quantity,
         sales_item_unit_price