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 7d799784b..b63277580 100644
--- a/backend/src/main/resources/dynamic-http-metadata-provider.schema.json
+++ b/backend/src/main/resources/dynamic-http-metadata-provider.schema.json
@@ -412,7 +412,7 @@
                             "title": "label.max-validity-interval",
                             "description": "tooltip.max-validity-interval",
                             "type": "string",
-                            "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)?)?$"
+                            "pattern": "^$|^(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)?)?$"
                         }
                     }
                 },
diff --git a/backend/src/main/resources/i18n/messages.properties b/backend/src/main/resources/i18n/messages.properties
index 9789f7299..b01f704ba 100644
--- a/backend/src/main/resources/i18n/messages.properties
+++ b/backend/src/main/resources/i18n/messages.properties
@@ -491,6 +491,8 @@ label.provider=Metadata Provider
 
 message.user-role-admin-group=Cannot change group for ROLE_ADMIN users.
 
+message.duration=Requires a valid ISO 8601 duration (ex. PT2D)
+
 message.delete-user-title=Delete User?
 message.delete-user-body=You are requesting to delete a user. If you complete this process the user will be removed. This cannot be undone. Do you wish to continue?
 
diff --git a/ui/public/assets/schema/provider/filebacked-http.schema.json b/ui/public/assets/schema/provider/filebacked-http.schema.json
index a85d1e400..2a2783843 100644
--- a/ui/public/assets/schema/provider/filebacked-http.schema.json
+++ b/ui/public/assets/schema/provider/filebacked-http.schema.json
@@ -297,7 +297,7 @@
                             "title": "label.max-validity-interval",
                             "description": "tooltip.max-validity-interval",
                             "type": "string",
-                            "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)?)?$"
+                            "pattern": "^$|^(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)?)?$"
                         }
                     }
                 },
diff --git a/ui/src/app/form/component/widgets/OptionWidget.js b/ui/src/app/form/component/widgets/OptionWidget.js
index 534595ead..b1b43fee5 100644
--- a/ui/src/app/form/component/widgets/OptionWidget.js
+++ b/ui/src/app/form/component/widgets/OptionWidget.js
@@ -51,6 +51,7 @@ const OptionWidget = ({
 
     const _onChange = (selected) => {
         const sel = selected[0];
+        
         const val = typeof sel === 'object' && sel.label ? sel.label : sel;
         setInputValue(val);
         onChange(val);
diff --git a/ui/src/app/metadata/domain/provider/definition/BaseProviderDefinition.js b/ui/src/app/metadata/domain/provider/definition/BaseProviderDefinition.js
index c801ddb04..d9eeee51a 100644
--- a/ui/src/app/metadata/domain/provider/definition/BaseProviderDefinition.js
+++ b/ui/src/app/metadata/domain/provider/definition/BaseProviderDefinition.js
@@ -24,14 +24,21 @@ export const BaseProviderDefinition = {
     },
     parser: (changes, base) => {
 
-        const baseFilters = base ? base.metadataFilters.filter(f => MetadataFilterTypes.indexOf(f['@type']) > -1) : []
+        const baseFilters = base ? base.metadataFilters.filter(f => MetadataFilterTypes.indexOf(f['@type']) > -1) : [];
 
         const parsed = (changes.metadataFilters ? ({
             ...changes,
             metadataFilters: [
-                ...changes.metadataFilters.filter((filter, filterName) => (
-                    Object.keys(filter).filter(k => k !== '@type').length > 0
-                )),
+                ...changes.metadataFilters.filter((filter, filterName) => {
+
+                    if (filter['@type'] === 'RequiredValidUntil') {
+                        if (!filter.maxValidityInterval || filter.maxValidityInterval === "") {
+                            return false;
+                        }
+                    }
+
+                    return Object.keys(filter).filter(k => k !== '@type').length > 0;
+                }),
                 ...baseFilters
             ]
         }) : changes);
@@ -43,7 +50,7 @@ export const BaseProviderDefinition = {
         if (!filterSchema || !changes) {
             return changes;
         }
-
+        
         const formatted = (changes.metadataFilters ? ({
             ...changes,
             metadataFilters: Object.values(filterSchema.items).map(item => {