Learn Editor: Update mca-section-invoice.md

Author: jkinma39

articles/cost-management-billing/manage/mca-section-invoice.md

@@ -151,7 +151,7 @@ Once you customized your billing account based on your needs, you can link subsc
 
 ### Link existing subscriptions and products
 
-If you have existing Azure subscriptions or other products such as Azure Marketplace and App source resources, you can move them from their existing invoice section to another invoice section to reorganize your costs. However, you can't change the invoice section for a reservation or savings plan.
+If you have existing Azure subscriptions or other products such as Azure Marketplace and App source resources, you can move them from their existing invoice section to another invoice section to reorganize your costs. However, you can't change the invoice section for a reservation, savings plan, or seat-based subscriptions.
 
 1. Sign in to the [Azure portal](https://portal.azure.com).