The INVOKE Step
Use the INVOKE step to request a service within a flow. You can use the INVOKE step to:
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Invoke
any type of service, including other flow services and web service connectors.
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Invoke any service for which the caller of the current flow has access rights on the local
webMethods Integration Server.
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Invoke built-in services and services on other
webMethods Integration Servers.
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Invoke flow services recursively (that is, a flow service that calls itself). If you use a flow service recursively, bear in mind that you must provide a means to end the recursion.
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Invoke any service, validating its input and/or output.