diff --git a/src/control-plane/auth/cognito-auth.ts b/src/control-plane/auth/cognito-auth.ts
index aa9bd75..e69e84b 100644
--- a/src/control-plane/auth/cognito-auth.ts
+++ b/src/control-plane/auth/cognito-auth.ts
@@ -13,7 +13,7 @@ import {
   ServicePrincipal,
   Effect,
 } from 'aws-cdk-lib/aws-iam';
-import { Runtime, IFunction, LayerVersion, ILayerVersion } from 'aws-cdk-lib/aws-lambda';
+import { Runtime, IFunction, LayerVersion } from 'aws-cdk-lib/aws-lambda';
 import { NagSuppressions } from 'cdk-nag';
 import { Construct } from 'constructs';
 import { CreateAdminUserProps, IAuth } from './auth-interface';
@@ -209,16 +209,17 @@ export class CognitoAuth extends Construct implements IAuth {
   private readonly userPool: cognito.UserPool;
 
   /**
-   * The Lambda Layer containing the Powertools library.
+   * The Lambda function for creating a new Admin User. This is used as part of a
+   * custom resource in CloudFormation to create an admin user.
    */
-  private readonly lambdaPowertoolsLayer: ILayerVersion;
+  private readonly createAdminUserFunction: IFunction;
 
   constructor(scope: Construct, id: string, props?: CognitoAuthProps) {
     super(scope, id);
     addTemplateTag(this, 'CognitoAuth');
 
     // https://docs.powertools.aws.dev/lambda/python/2.31.0/#lambda-layer
-    this.lambdaPowertoolsLayer = LayerVersion.fromLayerVersionArn(
+    const lambdaPowertoolsLayer = LayerVersion.fromLayerVersionArn(
       this,
       'LambdaPowerTools',
       `arn:aws:lambda:${Stack.of(this).region}:017000801446:layer:AWSLambdaPowertoolsPythonV2:59`
@@ -460,7 +461,7 @@ export class CognitoAuth extends Construct implements IAuth {
       handler: 'lambda_handler',
       timeout: Duration.seconds(60),
       role: userManagementExecRole,
-      layers: [this.lambdaPowertoolsLayer],
+      layers: [lambdaPowertoolsLayer],
       environment: {
         USER_POOL_ID: this.userPool.userPoolId,
       },
@@ -495,25 +496,23 @@ export class CognitoAuth extends Construct implements IAuth {
         },
       ]
     );
-  }
 
-  createAdminUser(scope: Construct, id: string, props: CreateAdminUserProps) {
-    const createAdminUserFunction = new PythonFunction(scope, `createAdminUserFunction-${id}`, {
+    this.createAdminUserFunction = new PythonFunction(scope, 'createAdminUserFunction', {
       entry: path.join(__dirname, '../../../resources/functions/auth-custom-resource'),
       runtime: Runtime.PYTHON_3_12,
       index: 'index.py',
       handler: 'handler',
       timeout: Duration.seconds(60),
-      layers: [this.lambdaPowertoolsLayer],
+      layers: [lambdaPowertoolsLayer],
     });
     this.userPool.grant(
-      createAdminUserFunction,
+      this.createAdminUserFunction,
       'cognito-idp:AdminCreateUser',
       'cognito-idp:AdminDeleteUser'
     );
 
     NagSuppressions.addResourceSuppressions(
-      createAdminUserFunction.role!,
+      this.createAdminUserFunction.role!,
       [
         {
           id: 'AwsSolutions-IAM4',
@@ -525,9 +524,11 @@ export class CognitoAuth extends Construct implements IAuth {
       ],
       true // applyToChildren = true, so that it applies to policies created for the role.
     );
+  }
 
+  createAdminUser(scope: Construct, id: string, props: CreateAdminUserProps) {
     new CustomResource(scope, `createAdminUserCustomResource-${id}`, {
-      serviceToken: createAdminUserFunction.functionArn,
+      serviceToken: this.createAdminUserFunction.functionArn,
       properties: {
         UserPoolId: this.userPool.userPoolId,
         Name: props.name,
diff --git a/src/control-plane/control-plane.ts b/src/control-plane/control-plane.ts
index 12b0363..f7f4f1c 100644
--- a/src/control-plane/control-plane.ts
+++ b/src/control-plane/control-plane.ts
@@ -81,11 +81,7 @@ export class ControlPlane extends Construct {
 
     cdk.Aspects.of(this).add(new DestroyPolicySetter());
 
-    const auth =
-      props.auth ||
-      new CognitoAuth(this, 'CognitoAuth', {
-        setAPIGWScopes: false,
-      });
+    const auth = props.auth || new CognitoAuth(this, 'CognitoAuth');
 
     auth.createAdminUser(this, 'adminUser', {
       name: systemAdminName,
diff --git a/src/control-plane/integ.default.ts b/src/control-plane/integ.default.ts
index 8cfa240..0a3fe05 100644
--- a/src/control-plane/integ.default.ts
+++ b/src/control-plane/integ.default.ts
@@ -5,7 +5,7 @@ import * as cdk from 'aws-cdk-lib';
 import { CfnRule, EventBus, Rule } from 'aws-cdk-lib/aws-events';
 import { LogGroup, RetentionDays } from 'aws-cdk-lib/aws-logs';
 import { AwsSolutionsChecks } from 'cdk-nag';
-import { ControlPlane } from '.';
+import { CognitoAuth, ControlPlane } from '.';
 import { DestroyPolicySetter } from '../cdk-aspect/destroy-policy-setter';
 
 export interface IntegStackProps extends cdk.StackProps {
@@ -16,7 +16,12 @@ export class IntegStack extends cdk.Stack {
   constructor(scope: cdk.App, id: string, props: IntegStackProps) {
     super(scope, id, props);
 
+    const cognitoAuth = new CognitoAuth(this, 'CognitoAuth', {
+      setAPIGWScopes: false, // only for testing purposes!
+    });
+
     const controlPlane = new ControlPlane(this, 'ControlPlane', {
+      auth: cognitoAuth,
       systemAdminEmail: props.systemAdminEmail,
     });
 
diff --git a/src/utils/event-manager.ts b/src/utils/event-manager.ts
index 2e70ee0..19fcee5 100644
--- a/src/utils/event-manager.ts
+++ b/src/utils/event-manager.ts
@@ -250,6 +250,8 @@ export class EventManager extends Construct implements IEventManager {
       deactivateRequest: this.controlPlaneEventSource,
       deactivateSuccess: this.applicationPlaneEventSource,
       deactivateFailure: this.applicationPlaneEventSource,
+      tenantUserCreated: this.controlPlaneEventSource,
+      tenantUserDeleted: this.controlPlaneEventSource,
     };
 
     for (const key in this.supportedEvents) {
diff --git a/test/event-manager.test.ts b/test/event-manager.test.ts
index f3809e7..54df91b 100644
--- a/test/event-manager.test.ts
+++ b/test/event-manager.test.ts
@@ -187,4 +187,21 @@ describe('EventManager', () => {
     testForRulesInOtherStack(controlPlaneStack);
     testForRulesInOtherStack(eventManagerStack);
   });
+
+  describe('supportedEvents in event-manager', () => {
+    const app = new cdk.App();
+    const eventManagerStack = new cdk.Stack(app, 'EventManagerStack');
+    const eventManager = new EventManager(eventManagerStack, 'EventManager');
+
+    // This ensures that when we try and use supportedEvents to create a rule,
+    // and key-in using a DetailType, a value exists for the source,
+    // which is used in the getOrCreateRule(...) function to create
+    // a new event-manager rule.
+    // (ex. "source: [this.supportedEvents[eventType]]")
+    it('should have values for all DetailType enum entries', () => {
+      Object.values(DetailType).forEach((detailTypeValues) => {
+        expect(eventManager.supportedEvents[detailTypeValues]).toBeDefined();
+      });
+    });
+  });
 });