diff --git a/config/stacks/sequenceRunManager.ts b/config/stacks/sequenceRunManager.ts
index bdcdb1f95..e71e568f7 100644
--- a/config/stacks/sequenceRunManager.ts
+++ b/config/stacks/sequenceRunManager.ts
@@ -1,5 +1,4 @@
 import {
-  region,
   AppStage,
   basespaceAccessTokenSecretName,
   cognitoApiGatewayConfig,
@@ -9,13 +8,10 @@ import {
   logsApiGatewayConfig,
   vpcProps,
   slackTopicName,
-  accountIdAlias,
 } from '../constants';
 import { SequenceRunManagerStackProps } from '../../lib/workload/stateless/stacks/sequence-run-manager/deploy/stack';
 
 export const getSequenceRunManagerStackProps = (stage: AppStage): SequenceRunManagerStackProps => {
-  const slackTopicArn =
-    'arn:aws:sns:' + region + ':' + accountIdAlias[stage] + ':' + slackTopicName;
   return {
     vpcProps,
     lambdaSecurityGroupName: computeSecurityGroupName,
@@ -28,6 +24,6 @@ export const getSequenceRunManagerStackProps = (stage: AppStage): SequenceRunMan
       customDomainNamePrefix: 'sequence',
     },
     bsshTokenSecretName: basespaceAccessTokenSecretName,
-    slackTopicArn: slackTopicArn,
+    slackTopicName: slackTopicName,
   };
 };
diff --git a/lib/workload/stateless/stacks/sequence-run-manager/deploy/stack.ts b/lib/workload/stateless/stacks/sequence-run-manager/deploy/stack.ts
index 926b21f4f..aef074031 100644
--- a/lib/workload/stateless/stacks/sequence-run-manager/deploy/stack.ts
+++ b/lib/workload/stateless/stacks/sequence-run-manager/deploy/stack.ts
@@ -14,7 +14,7 @@ import {
   HttpRoute,
   HttpRouteKey,
 } from 'aws-cdk-lib/aws-apigatewayv2';
-import { ManagedPolicy, Role, ServicePrincipal } from 'aws-cdk-lib/aws-iam';
+import { ManagedPolicy, PolicyStatement, Role, ServicePrincipal } from 'aws-cdk-lib/aws-iam';
 import { ApiGatewayConstruct, ApiGatewayConstructProps } from '../../../../components/api-gateway';
 import { Architecture } from 'aws-cdk-lib/aws-lambda';
 import { PostgresManagerStack } from '../../../../stateful/stacks/postgres-manager/deploy/stack';
@@ -25,7 +25,7 @@ export interface SequenceRunManagerStackProps {
   mainBusName: string;
   apiGatewayCognitoProps: ApiGatewayConstructProps;
   bsshTokenSecretName: string;
-  slackTopicArn: string;
+  slackTopicName: string;
 }
 
 export class SequenceRunManagerStack extends Stack {
@@ -94,12 +94,10 @@ export class SequenceRunManagerStack extends Stack {
       compatibleArchitectures: [Architecture.ARM_64],
     });
 
-    const topic: Topic = Topic.fromTopicArn(this, 'SlackTopic', props.slackTopicArn) as Topic;
-
     this.createMigrationHandler();
     this.createApiHandlerAndIntegration(props);
     this.createProcSqsHandler();
-    this.createSlackNotificationHandler(topic);
+    this.createSlackNotificationHandler(props.slackTopicName);
   }
 
   private createPythonFunction(name: string, props: object): PythonFunction {
@@ -223,10 +221,21 @@ export class SequenceRunManagerStack extends Stack {
     eventRule.addTarget(new LambdaFunction(fn));
   }
 
-  private createSlackNotificationHandler(topic: Topic) {
+  private createSlackNotificationHandler(topicName: string) {
     /**
      * subscribe to the 'SequenceRunStateChange' event, and send the slack notification toptic when the failed event is triggered.
      */
+    const slackTopicArn = 'arn:aws:sns:' + this.region + ':' + this.account + ':' + topicName;
+    const topic: Topic = Topic.fromTopicArn(this, 'SlackTopic', slackTopicArn) as Topic;
+
+    // Add a resource policy to allow EventBridge to publish to this SNS topic.
+    topic.addToResourcePolicy(
+      new PolicyStatement({
+        principals: [new ServicePrincipal('events.amazonaws.com')],
+        actions: ['sns:Publish'],
+        resources: [topic.topicArn],
+      })
+    );
 
     const eventRule = new Rule(this, this.stackName + 'EventSlackNotificationRule', {
       ruleName: this.stackName + 'EventSlackNotificationRule',