diff --git a/copilot/data-frontend/manifest.yml b/copilot/data-frontend/manifest.yml
index 868ac6e..e12d1ef 100644
--- a/copilot/data-frontend/manifest.yml
+++ b/copilot/data-frontend/manifest.yml
@@ -35,12 +35,14 @@ network:
 # Optional fields for more advanced use-cases.
 #
 variables:                    # Pass environment variables as key value pairs.
- LOG_LEVEL: info
- DATA_STORE_API_HOST: 'http://data-store:8080'
- COOKIE_DOMAIN: '.${COPILOT_ENVIRONMENT_NAME}.access-funding.test.levellingup.gov.uk'
- # Sentry DSN is OK to be public see: https://docs.sentry.io/product/sentry-basics/dsn-explainer/#dsn-utilization
- SENTRY_DSN: https://e63d6f45b69f46b9a381f1f042db363e@o1432034.ingest.sentry.io/4505358184415232
- FLASK_ENV: ${COPILOT_ENVIRONMENT_NAME}
+  LOG_LEVEL: info
+  DATA_STORE_API_HOST: 'http://data-store:8080'
+  COOKIE_DOMAIN: '.${COPILOT_ENVIRONMENT_NAME}.access-funding.test.levellingup.gov.uk'
+  # Sentry DSN is OK to be public see: https://docs.sentry.io/product/sentry-basics/dsn-explainer/#dsn-utilization
+  SENTRY_DSN: https://e63d6f45b69f46b9a381f1f042db363e@o1432034.ingest.sentry.io/4505358184415232
+  FLASK_ENV: ${COPILOT_ENVIRONMENT_NAME}
+  MAINTENANCE_MODE: true
+  MAINTENANCE_ENDS_FROM: "5pm on Thursday 25 July 2024."
 
 secrets:
     AUTHENTICATOR_HOST: /copilot/${COPILOT_APPLICATION_NAME}/${COPILOT_ENVIRONMENT_NAME}/secrets/AUTHENTICATOR_HOST # The key is the name of the environment variable, the value is the name of the SSM parameter.