I have a clustered environment (Search Head Cluster with 1 Forwarder, 3 SHs, and 2 Indexers).
I have deployed a custom-built app on the Forwarder.
I would like to set schedule saved searches on Search Head.
How to achieve this from Splunk UI? Or Is there any other way than Splunk UI?
Schedule saved searches on a SHC using the UI the same way you would on a standalone SH. The cluster will take care of replicating the search to the other nodes.
You also can do it by modifying savedsearches.conf in an app and deploying that app from your SHC deployer.