diff --git a/web/pgadmin/browser/server_groups/servers/static/js/membership.ui.js b/web/pgadmin/browser/server_groups/servers/static/js/membership.ui.js
index c11070ccbfe..66f190d4d08 100644
--- a/web/pgadmin/browser/server_groups/servers/static/js/membership.ui.js
+++ b/web/pgadmin/browser/server_groups/servers/static/js/membership.ui.js
@@ -29,6 +29,7 @@ export default class MembershipSchema extends BaseUISchema {
   }
 
   get baseFields() {
+    let obj = this;
     return [{
       id: 'role', label: gettext('User/Role'), type:'text',
       editable: true,
@@ -38,6 +39,9 @@ export default class MembershipSchema extends BaseUISchema {
           allowClear: false,
         }
       }),
+      disabled: function (state) {
+        return !obj.isNew(state);
+      },
       noEmpty: true,
       minWidth: 300
     },
diff --git a/web/pgadmin/browser/server_groups/servers/static/js/variable.ui.js b/web/pgadmin/browser/server_groups/servers/static/js/variable.ui.js
index af77bb5d7f3..87f6a04b7d4 100644
--- a/web/pgadmin/browser/server_groups/servers/static/js/variable.ui.js
+++ b/web/pgadmin/browser/server_groups/servers/static/js/variable.ui.js
@@ -169,6 +169,9 @@ export default class VariableSchema extends BaseUISchema {
           options: obj.vnameOptions,
           controlProps: { allowClear: false },
         }),
+        disabled: function (state) {
+          return !obj.isNew(state);
+        },
       },
       {
         id: 'keyword', label: gettext('Keyword'), type: '', cell: '',