diff --git a/backend/src/main/resources/dynamic-http-metadata-provider.schema.json b/backend/src/main/resources/dynamic-http-metadata-provider.schema.json
index f9dec02b8..887508b7f 100644
--- a/backend/src/main/resources/dynamic-http-metadata-provider.schema.json
+++ b/backend/src/main/resources/dynamic-http-metadata-provider.schema.json
@@ -152,8 +152,8 @@
                         "step": 0.01
                     },
                     "placeholder": "label.real-number",
-                    "minimum": 0,
-                    "maximum": 1,
+                    "minimum": 0.01,
+                    "maximum": 0.99,
                     "default": null
                 },
                 "minCacheDuration": {
@@ -222,6 +222,29 @@
                     "default": null,
                     "pattern": "^(R\\d*\\/)?P(?:\\d+(?:\\.\\d+)?Y)?(?:\\d+(?:\\.\\d+)?M)?(?:\\d+(?:\\.\\d+)?W)?(?:\\d+(?:\\.\\d+)?D)?(?:T(?:\\d+(?:\\.\\d+)?H)?(?:\\d+(?:\\.\\d+)?M)?(?:\\d+(?:\\.\\d+)?S)?)?$"
                 },
+                "removeIdleEntityData": {
+                    "title": "label.remove-idle-entity-data",
+                    "description": "tooltip.remove-idle-entity-data",
+                    "type": "boolean",
+                    "widget": {
+                        "id": "boolean-radio"
+                    },
+                    "oneOf": [
+                        {
+                            "enum": [
+                                true
+                            ],
+                            "description": "value.true"
+                        },
+                        {
+                            "enum": [
+                                false
+                            ],
+                            "description": "value.false"
+                        }
+                    ],
+                    "default": true
+                },
                 "cleanupTaskInterval": {
                     "title": "label.cleanup-task-interval",
                     "description": "tooltip.cleanup-task-interval",
diff --git a/backend/src/main/resources/i18n/messages_en.properties b/backend/src/main/resources/i18n/messages_en.properties
index 7d20536d0..5c9c78d5a 100644
--- a/backend/src/main/resources/i18n/messages_en.properties
+++ b/backend/src/main/resources/i18n/messages_en.properties
@@ -483,9 +483,9 @@ tooltip.enable-provider-upon-saving=If checkbox is clicked, the metadata provide
 tooltip.max-validity-interval=Defines the window within which the metadata is valid.
 tooltip.require-signed-root=If true, this fails to load metadata with no signature on the root XML element.
 tooltip.certificate-file=A key used to verify the signature. Conflicts with trustEngineRef and both of the child elements.
-tooltip.retained-roles=Controls whether to keep entity descriptors that contain no roles
-tooltip.remove-roleless-entity-descriptors=Controls whether to keep entity descriptors that contain no roles.
-tooltip.remove-empty-entities-descriptors=Controls whether to keep entities descriptors that contain no entity descriptors.
+tooltip.retained-roles=Note that property replacement cannot be used on this element.
+tooltip.remove-roleless-entity-descriptors=Controls whether to keep entity descriptors that contain no roles. Note: If this attribute is set to false, the resulting output may not be schema-valid since an <md:EntityDescriptor> element must include at least one role descriptor.
+tooltip.remove-empty-entities-descriptors=Controls whether to keep entities descriptors that contain no entity descriptors. Note: If this attribute is set to false, the resulting output may not be schema-valid since an <md:EntitiesDescriptor> element must include at least one child element, either an <md:EntityDescriptor> element or an <md:EntitiesDescriptor> element.
 
 tooltip.min-refresh-delay=Lower bound on the next refresh from the time calculated based on the metadata\u0027s expiration.
 tooltip.max-refresh-delay=Upper bound on the next refresh from the time calculated based on the metadata\u0027s expiration.