diff --git a/x-pack/plugins/rule_registry/server/index.ts b/x-pack/plugins/rule_registry/server/index.ts
index 7b43ae675faf70..7c467173008196 100644
--- a/x-pack/plugins/rule_registry/server/index.ts
+++ b/x-pack/plugins/rule_registry/server/index.ts
@@ -13,6 +13,8 @@ export { RuleRegistryPluginSetupContract } from './plugin';
 export { createLifecycleRuleTypeFactory } from './rule_registry/rule_type_helpers/create_lifecycle_rule_type_factory';
 export { ecsFieldMap } from './generated/ecs_field_map';
 export { pickWithPatterns } from './rule_registry/field_map/pick_with_patterns';
+export { FieldMapOf } from './types';
+export { ScopedRuleRegistryClient } from './rule_registry/create_scoped_rule_registry_client/types';
 
 export const config = {
   schema: schema.object({
diff --git a/x-pack/plugins/rule_registry/server/rule_registry/create_scoped_rule_registry_client/index.ts b/x-pack/plugins/rule_registry/server/rule_registry/create_scoped_rule_registry_client/index.ts
index 2a9eecc77ba589..9a3d4a38d2ad65 100644
--- a/x-pack/plugins/rule_registry/server/rule_registry/create_scoped_rule_registry_client/index.ts
+++ b/x-pack/plugins/rule_registry/server/rule_registry/create_scoped_rule_registry_client/index.ts
@@ -28,7 +28,9 @@ const getRuleUuids = async ({
     ...(namespace ? { namespace } : {}),
   };
 
-  const pitFinder = savedObjectsClient.createPointInTimeFinder(options);
+  const pitFinder = savedObjectsClient.createPointInTimeFinder({
+    ...options,
+  });
 
   const ruleUuids: string[] = [];
 
@@ -53,7 +55,8 @@ export function createScopedRuleRegistryClient<TFieldMap extends DefaultFieldMap
   savedObjectsClient,
   namespace,
   clusterClientAdapter,
-  index,
+  indexAliasName,
+  indexTarget,
   logger,
   ruleData,
 }: {
@@ -65,7 +68,8 @@ export function createScopedRuleRegistryClient<TFieldMap extends DefaultFieldMap
     body: OutputOfFieldMap<TFieldMap>;
     index: string;
   }>;
-  index: string;
+  indexAliasName: string;
+  indexTarget: string;
   logger: Logger;
   ruleData?: {
     rule: {
@@ -100,7 +104,7 @@ export function createScopedRuleRegistryClient<TFieldMap extends DefaultFieldMap
 
       const response = await scopedClusterClient.asInternalUser.search({
         ...searchRequest,
-        index,
+        index: indexTarget,
         body: {
           ...searchRequest.body,
           query: {
@@ -139,7 +143,7 @@ export function createScopedRuleRegistryClient<TFieldMap extends DefaultFieldMap
         throw createPathReporterError(validation);
       }
 
-      clusterClientAdapter.indexDocument({ body: validation.right, index });
+      clusterClientAdapter.indexDocument({ body: validation.right, index: indexAliasName });
     },
     bulkIndex: (docs) => {
       const validations = docs.map((doc) => {
@@ -161,7 +165,7 @@ export function createScopedRuleRegistryClient<TFieldMap extends DefaultFieldMap
 
       const operations = compact(
         validations.map((validation) => (isRight(validation) ? validation.right : null))
-      ).map((doc) => ({ body: doc, index }));
+      ).map((doc) => ({ body: doc, index: indexAliasName }));
 
       return clusterClientAdapter.indexDocuments(operations);
     },
diff --git a/x-pack/plugins/rule_registry/server/rule_registry/field_map/runtime_type_from_fieldmap.ts b/x-pack/plugins/rule_registry/server/rule_registry/field_map/runtime_type_from_fieldmap.ts
index 422747282beaa0..6dc557c016d1a1 100644
--- a/x-pack/plugins/rule_registry/server/rule_registry/field_map/runtime_type_from_fieldmap.ts
+++ b/x-pack/plugins/rule_registry/server/rule_registry/field_map/runtime_type_from_fieldmap.ts
@@ -89,7 +89,7 @@ export function runtimeTypeFromFieldMap<TFieldMap extends FieldMap>(
   fieldMap: TFieldMap
 ): FieldMapType<TFieldMap> {
   function mapToType(fields: FieldMap) {
-    return mapValues(fields, (field) => {
+    return mapValues(fields, (field, key) => {
       const type =
         field.type in esFieldTypeMap
           ? esFieldTypeMap[field.type as keyof EsFieldTypeMap]
diff --git a/x-pack/plugins/rule_registry/server/rule_registry/index.ts b/x-pack/plugins/rule_registry/server/rule_registry/index.ts
index fc3a2ab0228150..f1d24550ade0a5 100644
--- a/x-pack/plugins/rule_registry/server/rule_registry/index.ts
+++ b/x-pack/plugins/rule_registry/server/rule_registry/index.ts
@@ -78,11 +78,13 @@ export class RuleRegistry<TFieldMap extends DefaultFieldMap> {
 
   private getEsNames() {
     const base = [this.options.kibanaIndex, this.options.name];
+    const indexTarget = `${base.join('-')}*`;
     const indexAliasName = [...base, this.options.kibanaVersion.toLowerCase()].join('-');
     const policyName = [...base, 'policy'].join('-');
 
     return {
       indexAliasName,
+      indexTarget,
       policyName,
     };
   }
@@ -137,13 +139,15 @@ export class RuleRegistry<TFieldMap extends DefaultFieldMap> {
     if (!this.options.writeEnabled) {
       return undefined;
     }
+    const { indexAliasName, indexTarget } = this.getEsNames();
 
     return createScopedRuleRegistryClient({
-      savedObjectsClient: context.core.savedObjects.client,
+      savedObjectsClient: context.core.savedObjects.getClient({ includedHiddenTypes: ['alert'] }),
       scopedClusterClient: context.core.elasticsearch.client,
       clusterClientAdapter: this.esAdapter,
       fieldMap: this.options.fieldMap,
-      index: this.getEsNames().indexAliasName,
+      indexAliasName,
+      indexTarget,
       logger: this.options.logger,
     });
   }
@@ -153,6 +157,8 @@ export class RuleRegistry<TFieldMap extends DefaultFieldMap> {
   ) {
     const logger = this.options.logger.get(type.id);
 
+    const { indexAliasName, indexTarget } = this.getEsNames();
+
     this.options.alertingPluginSetupContract.registerType<
       AlertTypeParams,
       AlertTypeState,
@@ -187,7 +193,8 @@ export class RuleRegistry<TFieldMap extends DefaultFieldMap> {
                     scopedClusterClient: services.scopedClusterClient,
                     clusterClientAdapter: this.esAdapter,
                     fieldMap: this.options.fieldMap,
-                    index: this.getEsNames().indexAliasName,
+                    indexAliasName,
+                    indexTarget,
                     namespace,
                     ruleData: {
                       producer,
diff --git a/x-pack/plugins/rule_registry/server/types.ts b/x-pack/plugins/rule_registry/server/types.ts
index da355a412207cf..e6b53a8558964e 100644
--- a/x-pack/plugins/rule_registry/server/types.ts
+++ b/x-pack/plugins/rule_registry/server/types.ts
@@ -14,6 +14,7 @@ import {
   AlertTypeState,
 } from '../../alerting/common';
 import { ActionGroup, AlertExecutorOptions } from '../../alerting/server';
+import { RuleRegistry } from './rule_registry';
 import { ScopedRuleRegistryClient } from './rule_registry/create_scoped_rule_registry_client/types';
 import { DefaultFieldMap } from './rule_registry/defaults/field_map';
 
@@ -93,3 +94,7 @@ export type RuleType<
     TAdditionalRuleExecutorServices
   >;
 };
+
+export type FieldMapOf<
+  TRuleRegistry extends RuleRegistry<any>
+> = TRuleRegistry extends RuleRegistry<infer TFieldMap> ? TFieldMap : never;
diff --git a/x-pack/test/apm_api_integration/tests/alerts/rule_registry.ts b/x-pack/test/apm_api_integration/tests/alerts/rule_registry.ts
index d87058ec28d73d..ff4d36d9af72fd 100644
--- a/x-pack/test/apm_api_integration/tests/alerts/rule_registry.ts
+++ b/x-pack/test/apm_api_integration/tests/alerts/rule_registry.ts
@@ -134,9 +134,7 @@ export default function ApiTest({ getService }: FtrProviderContext) {
       expect(apmIndexName.split('-').includes('observability')).to.be(true);
       expect(apmIndexName.split('-').includes('apm')).to.be(true);
 
-      expectSnapshot(indexNames[0]).toMatchInline(
-        `".kibana-alerts-observability-apm-8.0.0-000001"`
-      );
+      expect(indexNames[0].startsWith('.kibana-alerts-observability-apm')).to.be(true);
 
       expect(get(apmIndex, 'index.mappings.properties.service.properties.environment.type')).to.be(
         'keyword'