vRealize Orchestrator is a vSphere task automation tool that is available with your vCenter Standard License. It has access to the entire vSphere API, making it a very powerful tool. The vRO plugin for SRM/vSphere Replication will enable some prebuilt workflows that can be readily used. vRO can also be used to create custom workflows for commonly performed tasks.
It is important to download a version of vRO that is compatible with the version of the solution whose tasks you intend to automate.
Here are a few charts from the VMware Product Interoperability Matrix online tool: https://www.vmware.com/resources/compatibility/sim/interop_matrix.php