add es portal deprecation notice (#21962)

content/admin/enterprise-support/overview/about-github-enterprise-support.md

@@ -46,6 +46,11 @@ For more information, see "[About {% data variables.contact.premium_support %} f
 
 ## Contacting {% data variables.contact.enterprise_support %}
 
+{% ifversion ghes %}
+{% data reusables.support.zendesk-deprecation %}
+{% endif %}
+
+
 You can contact {% data variables.contact.enterprise_support %} through {% ifversion ghes %}{% data variables.contact.contact_enterprise_portal %}{% elsif ghae %} the {% data variables.contact.ae_azure_portal %}{% endif %} to report issues in writing. For more information, see "[Receiving help from {% data variables.contact.github_support %}](/admin/enterprise-support/receiving-help-from-github-support)."
 
 {% ifversion ghes %}

content/admin/enterprise-support/overview/about-support-for-advanced-security.md

@@ -37,6 +37,8 @@ If you're uncertain if the issue is out of scope, open a ticket and we're happy
 
 ## Contacting {% data variables.contact.enterprise_support %}
 
+{% data reusables.support.zendesk-deprecation %}
+
 You can contact {% data variables.contact.enterprise_support %} through the {% data variables.contact.contact_enterprise_portal %} for help with:
 - Installing and using {% data variables.product.prodname_advanced_security %}
 - Identifying and verifying the causes of supported errors

content/admin/enterprise-support/receiving-help-from-github-support/reaching-github-support.md

@@ -18,6 +18,8 @@ Though we'll do our best to respond to automated support requests, we typically
 
 ## Contacting {% data variables.contact.enterprise_support %}
 
+{% data reusables.support.zendesk-deprecation %}
+
 {% data variables.contact.enterprise_support %} customers can open a support ticket using the {% ifversion ghes %}{% data variables.product.prodname_ghe_server %} {% data variables.enterprise.management_console %} or the {% data variables.contact.contact_enterprise_portal %}{% elsif ghae %} the {% data variables.contact.contact_ae_portal %}{% endif %}. Mark the ticket's priority as {% data variables.product.support_ticket_priority_urgent %}, {% data variables.product.support_ticket_priority_high %}, {% data variables.product.support_ticket_priority_normal %}, or {% data variables.product.support_ticket_priority_low %}. For more information, see "[Assigning a priority to a support ticket](/enterprise/admin/guides/enterprise-support/about-github-enterprise-support#assigning-a-priority-to-a-support-ticket)" and "[Submitting a ticket](/enterprise/admin/guides/enterprise-support/submitting-a-ticket)."
 
 ## Contacting {% data variables.contact.enterprise_support %}

content/admin/enterprise-support/receiving-help-from-github-support/submitting-a-ticket.md

@@ -27,6 +27,8 @@ After submitting your support request and optional diagnostic information, {% da
 
 ## Submitting a ticket using the {% data variables.contact.enterprise_portal %}
 
+{% data reusables.support.zendesk-deprecation %}
+
 1. Navigate to the {% data variables.contact.contact_enterprise_portal %}.
 5. Click **Submit a Ticket**
   ![Submit a ticket to Enterprise Support team](/assets/images/enterprise/support/submit-ticket-button.png)

content/github/working-with-github-support/about-github-support.md

@@ -25,6 +25,8 @@ To see if there are currently any incidents affecting services on {% data variab
 
 ## Contacting {% data variables.contact.github_support %}
 
+{% data reusables.support.zendesk-deprecation %}
+
 You can use the {% data variables.contact.community_support_forum %} to browse topics, ask questions, share solutions, and interact directly with {% data variables.contact.community_support %}. 
 
 To report account, security, and abuse issues, or to receive assisted support for a paid account, visit the {% data variables.contact.contact_support_portal %}. If you are an administrator for {% data variables.product.prodname_ghe_server %} without a user account on {% data variables.product.prodname_dotcom_the_website %}, visit the {% data variables.contact.contact_enterprise_portal %}. Email communication from GitHub Support will always be sent from either a `github.com` or `githubsupport.com` address.

content/github/working-with-github-support/github-enterprise-cloud-support.md

@@ -18,6 +18,8 @@ shortTitle: GitHub Enterprise Cloud
 
 {% endnote %}
 
+{% data reusables.support.zendesk-deprecation %}
+
 You can submit priority questions if you have purchased {% data variables.product.prodname_ghe_cloud %} or if you're a member, outside collaborator, or billing manager of a {% data variables.product.prodname_dotcom %} organization currently subscribed to {% data variables.product.prodname_ghe_cloud %}.
 
 Questions that qualify for priority responses:

content/github/working-with-github-support/submitting-a-ticket.md

@@ -35,6 +35,8 @@ If you do not have an enterprise account, please use the {% data variables.conta
 
 ## Submitting a ticket using the {% data variables.contact.enterprise_portal %}
 
+{% data reusables.support.zendesk-deprecation %}
+
 1. Navigate to the {% data variables.contact.contact_enterprise_portal %}.
 5. Click **Submit a Ticket**
   ![Submit a ticket to Enterprise Support team](/assets/images/enterprise/support/submit-ticket-button.png)

data/reusables/support/zendesk-deprecation.md

@@ -0,0 +1,5 @@
+{% warning %}
+
+**Deprecation notice:** The legacy {% data variables.contact.contact_enterprise_portal %} will be deprecated on November 1, 2021. Any new requests should be submitted through the {% data variables.contact.contact_support_portal %}. For more information, see "[About the Support Portal](https://support.github.com/about-support-portal-enterprise)."
+
+{% endwarning %}