update intro in overview & description for 400 error

Author: bc-andreadao

docs/store-operations/pricing/msf-international-enhancements.mdx

@@ -1,16 +1,15 @@
 # Price Lists - International Enhancements for Multi-Storefront
 
 <Callout type="info">
-  Tax-inclusive or exclusive price lists are in beta. Features may change based on user feedback or internal testing.
+  Tax-inclusive and exclusive price lists are in beta. Features may change based on user feedback or internal testing.
 </Callout>
 
-_International Enhancements for Multi-Storefront_ allow you to deliver localized experiences to fit different shopper needs. 
+When you sell internationally, you may need your storefront to display prices that either include or exclude tax based on regional expectations. You may need some storefront channels to display prices that include tax, while others display prices that exclude tax.
 
-Shoppers expect storefront prices to include or exclude tax depending on their region when you sell internationally. 
+To localize your storefronts, you can do the following:
+- Specify whether a price list has prices that include or exclude tax when entered.
+- Assign the price list to storefront channels (or customer groups).
 
-When you create separate storefront channels for each region, you may need some storefronts to display prices that include tax, while others display prices that exclude tax.
-
-To do so, specify whether a price list has prices that include or exclude tax when entered. Then assign the price list to storefront channels.
 
 ## Limitations
 
@@ -74,15 +73,15 @@ The following example creates a tax-inclusive price list by sending a request to
 
 The following fallback behavior applies if you set a product as available for purchase, but the price list doesn't have a price entered for the product.
 
-When a price list inherits global settings: 
-- Price lists will default to catalog prices if a price is missing. 
+- When a price list inherits global settings, price lists will default to catalog prices if a price is missing. 
+- When a price list overrides the global store setting, prices returned will be `null` if a price is missing in the price list. 
 
-When a price list overrides the global store setting:
-- Prices returned will be `null` if a price is missing in the price list. This applies for the prices returned in the [Pricing](/docs/rest-management/pricing/products) endpoint of the REST Management API and the [GraphQL Storefront API](/docs/storefront/graphql). 
-- On Stencil storefronts, the product, but not the price, will still be visible. You won't be able to purchase it, but you can still add to wishlist.
+  This applies for the prices returned in the [Pricing](/docs/rest-management/pricing/products) endpoint of the REST Management API and the [GraphQL Storefront API](/docs/storefront/graphql). 
+  
+  On Stencil storefronts, the product, but not the price, will still be visible. You won't be able to purchase it, but you can still add to wishlist.
 
 <Callout type="info">
-  [Update your Stencil theme](https://support.bigcommerce.com/s/article/Marketplace-Theme-Updates) for your Stencil storefront to display these features. 
+  You must [update your Stencil theme](https://support.bigcommerce.com/s/article/Marketplace-Theme-Updates) for your Stencil storefront. 
 </Callout>
 
 ## Additional resources

reference/price_lists.v3.yml

@@ -435,7 +435,7 @@ paths:
                     type: string
         '400':
           description: |
-            `prices_entered_with_tax` allowed values: `use_global`.
+            (For Catalog V2 stores) `prices_entered_with_tax` allowed values: `use_global`.
           content:
             application/json:
               schema: