A Concurrent group is a section of a script in which all functions are executed concurrently. The web.concurrentStart function marks the beginning of a concurrent group. The end of the group is marked by the web.concurrentEnd function. Within the Concurrent group, you may include action functions and several Service functions.
Note that the functions included within the concurrent group are not executed immediately. Instead, they are registered for concurrent execution. When the concurrent group is closed, all of the functions registered as concurrent are executed together.
This function is supported for all web scripts.
See Concurrent Functions for a list of functions that may be included within a concurrent group.