Validate proxy port issue 24312

Author: edenduong

app/code/Magento/Paypal/etc/adminhtml/system/express_checkout.xml

@@ -117,8 +117,9 @@
                         <field id="use_proxy">1</field>
                     </depends>
                 </field>
-                <field id="proxy_port" translate="label" type="text" sortOrder="110" showInDefault="1" showInWebsite="1">
+                <field id="proxy_port" translate="label comment" type="text" sortOrder="110" showInDefault="1" showInWebsite="1">
                     <label>Proxy Port</label>
+                    <comment>Please enter at least 0 and at most 65535</comment>
                     <config_path>paypal/wpp/proxy_port</config_path>
                     <attribute type="shared">1</attribute>
                     <depends>

app/code/Magento/Paypal/etc/adminhtml/system/payflow_advanced.xml

@@ -69,8 +69,9 @@
                     </depends>
                     <attribute type="shared">1</attribute>
                 </field>
-                <field id="proxy_port" translate="label" type="text" sortOrder="90" showInDefault="1" showInWebsite="1">
+                <field id="proxy_port" translate="label comment" type="text" sortOrder="90" showInDefault="1" showInWebsite="1">
                     <label>Proxy Port</label>
+                    <comment>Please enter at least 0 and at most 65535</comment>
                     <config_path>payment/payflow_advanced/proxy_port</config_path>
                     <depends>
                         <field id="use_proxy">1</field>

app/code/Magento/Paypal/etc/adminhtml/system/payflow_link.xml

@@ -70,8 +70,9 @@
                     </depends>
                     <attribute type="shared">1</attribute>
                 </field>
-                <field id="proxy_port" translate="label" type="text" sortOrder="80" showInDefault="1" showInWebsite="1">
+                <field id="proxy_port" translate="label comment" type="text" sortOrder="80" showInDefault="1" showInWebsite="1">
                     <label>Proxy Port</label>
+                    <comment>Please enter at least 0 and at most 65535</comment>
                     <config_path>payment/payflow_link/proxy_port</config_path>
                     <depends>
                         <field id="use_proxy">1</field>

app/code/Magento/Paypal/etc/adminhtml/system/paypal_payflowpro.xml

@@ -65,8 +65,9 @@
                     </depends>
                     <attribute type="shared">1</attribute>
                 </field>
-                <field id="proxy_port" translate="label" type="text" sortOrder="90" showInDefault="1" showInWebsite="1">
+                <field id="proxy_port" translate="label comment" type="text" sortOrder="90" showInDefault="1" showInWebsite="1">
                     <label>Proxy Port</label>
+                    <comment>Please enter at least 0 and at most 65535</comment>
                     <config_path>payment/payflowpro/proxy_port</config_path>
                     <depends>
                         <field id="use_proxy">1</field>

app/code/Magento/Paypal/i18n/en_US.csv

@@ -737,3 +737,4 @@ User,User
 "PayPal Credit","PayPal Credit"
 "PayPal Guest Checkout Credit Card Icons","PayPal Guest Checkout Credit Card Icons"
 "Elektronisches Lastschriftverfahren - German ELV","Elektronisches Lastschriftverfahren - German ELV"
+"Please enter at least 0 and at most 65535","Please enter at least 0 and at most 65535"