edits

Author: v-albemi

articles/api-management/howto-protect-backend-frontend-azure-ad-b2c.md

@@ -199,7 +199,7 @@ Open the Azure AD B2C blade in the portal and do the following steps.
    >
    > We still have no IP security applied, if you have a valid key and OAuth2 token, anyone can call this from anywhere - ideally we want to force all requests to come via API Management.
    >
-   > If you're using the API Management Consumption, Basic v2, Standard v2, and Premium v2 tiers, then [there isn't a dedicated Azure API Management Virtual IP](./api-management-howto-ip-addresses.md#ip-addresses-of-consumption-basic-v2-standard-v2-and-premium-v2-tier-api-management-service) to allow-list with the functions access-restrictions. In the Azure API Management classic (dedicated) tiers [the VIP is single tenant and for the lifetime of the resource](./api-management-howto-ip-addresses.md#changes-to-the-ip-addresses). For the tiers that run on shared infrastructure, you can lock down your API calls via the shared secret function key in the portion of the URI you copied above. Also, for these tiers - steps 12-17 below do not apply.
+   > If you're using the API Management Consumption, Basic v2, Standard v2, and Premium v2 tiers, then [there isn't a dedicated Azure API Management Virtual IP](./api-management-howto-ip-addresses.md#ip-addresses-of-consumption-basic-v2-standard-v2-and-premium-v2-tier-api-management-instances) to allow-list with the functions access-restrictions. In the Azure API Management classic (dedicated) tiers [the VIP is single tenant and for the lifetime of the resource](./api-management-howto-ip-addresses.md#changes-to-the-ip-addresses). For the tiers that run on shared infrastructure, you can lock down your API calls via the shared secret function key in the portion of the URI you copied above. Also, for these tiers - steps 12-17 below do not apply.
 
 1. Close the 'Authentication' blade from the App Service / Functions portal.
 1. Open the *API Management blade of the portal*, then open *your instance*.