diff --git a/ecommerce-module/introduction/building-a-custom-payment-gateway/steps-to-support-checkout-with-your-custom-payment-gateway.md b/ecommerce-module/introduction/building-a-custom-payment-gateway/steps-to-support-checkout-with-your-custom-payment-gateway.md
index 4d023d94..cfeacddc 100644
--- a/ecommerce-module/introduction/building-a-custom-payment-gateway/steps-to-support-checkout-with-your-custom-payment-gateway.md
+++ b/ecommerce-module/introduction/building-a-custom-payment-gateway/steps-to-support-checkout-with-your-custom-payment-gateway.md
@@ -94,6 +94,14 @@ The table below shows the fields you can access or update in the Order model:
 | Shipping Method Price | module\_field\_14/order\_12 |                                                                                                                                                                                                                                                                                                           |
 | Shipping Method Name  | module\_field\_14/order\_13 |                                                                                                                                                                                                                                                                                                           |
 | Discount Code ID      | module\_field\_14/order\_14 |                                                                                                                                                                                                                                                                                                           |
+| Subtotal Price        | module\_field\_14/order\_15 |                                                                                                                                                                                                                                                                                                           |
+| Subtotal Before Tax   | module\_field\_14/order\_16 |                                                                                                                                                                                                                                                                                                           |
+| Subtotal Tax Amount   | module\_field\_14/order\_17 |                                                                                                                                                                                                                                                                                                           |
+| Shipping Option Price | module\_field\_14/order\_23 |                                                                                                                                                                                                                                                                                                           |
+| Total Before Tax      | module\_field\_14/order\_25 |                                                                                                                                                                                                                                                                                                           |
+| Total Tax Amount      | module\_field\_14/order\_26 |                                                                                                                                                                                                                                                                                                           |
+| Cart Data             | module\_field\_14/order\_27 |                                                                                                                                                                                                                                                                                                           |
+| Shipping Data         | module\_field\_14/order\_30 |                                                                                                                                                                                                                                                                                                           |
 
 ### Step 6) Resolve any Errors