Where to configure mail trigger interval for Asset publisher portlet

Issue

• Liferay sends an email to Asset Publisher portlet's subscribed users every twenty-four hours once. How to change the same?

Environment

• Liferay DXP 7.0

Resolution

• Liferay portal periodically checks for new assets and sends emails to subscribed users informing them about the new assets. By default, Liferay performs this check every twenty-four hours and it has defined inside the portlet.properties of this jar file(com.liferay.asset.publisher.web.jar) and it can be found under the below path. 
  {Liferay_home}/osgi/marketplace/Liferay Web Experience.lpkg/com.liferay.asset.publisher.web.jar/portlet.properties
  

  #
  # Set the interval in hours on how often CheckAssetEntryMessageListener will run
  # to check for new assets. Users will be notified via email of new assets.
  #
  check.interval=24

  This can be overridden by portlet-ext.properties(we have to place this properties file inside this location {Liferay_HOME}/tomcat-8.0.32/webapps/ROOT/WEB-INF/classes). The least value we can provide is 1 hour and this is how the product was designed.
• Please perform the above activity in the application's downtime as it requires the restart of the portal.