Workflows can call on other workflows during their run. A workflow can start another workflow either because it requires the result of the other workflow as an input parameter for its own run, or it can start a workflow and let it continue its own run independently. Workflows can also start a workflow at a given time in the future, or start multiple workflows simultaneously.
Workflow Elements That Call Workflows There are four ways to call other workflows from within a workflow. Each way of calling a workflow or workflows is represented by a different workflow schema element.
Call a Workflow Synchronously Calling a workflow synchronously runs the called workflow as a part of the run of the calling workflow. The calling workflow can use the called workflow's output parameters as input parameters when it runs its subsequent schema elements.
Call a Workflow Asynchronously Calling a workflow asynchronously runs the called workflow independently of the calling workflow. The calling workflow continues its run without waiting for the called workflow to complete.
Schedule a Workflow You can call a workflow from a workflow and schedule it to start at a later time and date.
Prerequisites for Calling a Remote Workflow from Within Another Workflow If the workflow that you develop calls another workflow that resides on a remote vRealize Orchestrator server, certain prerequisites must be fulfilled so that the remote workflow can run successfully.
Call Several Workflows Simultaneously Calling several workflows simultaneously runs the called workflows synchronously as part of the run of the calling workflow. The calling workflow waits for all the called workflows to complete before it continues. The calling workflow can use the results of the called workflows as input parameters when it runs its subsequent schema elements.