update

Author: bandersmsft

articles/cost-management-billing/manage/change-azure-account-profile.yml

@@ -93,7 +93,7 @@ procedureSection:
     summary: |
       By default, invoices for the billing profile don't have an associated PO number. After you add a PO number for a billing profile, the system regenerates the invoices within 24 hours. Afterward, the PO number appears on invoices for the billing profile.
       
-      To add or change the PO number for a billing profile, use the following steps.
+      To add a PO number for a billing profile, use the following steps.
     steps:
       - |
         Sign in to the [Azure portal](https://portal.azure.com).
@@ -116,7 +116,7 @@ procedureSection:
     summary: |
       If you want to update a PO number from an unpaid invoice, select the invoice ID and update the PO number from the invoice. The system regenerates the invoices within 24 hours.
       
-      To add or change the PO number for a billing profile, use the following steps.
+      To change the PO number for a billing profile, use the following steps.
     steps:
       - |
         Sign in to the [Azure portal](https://portal.azure.com).