What shape is used in the process configuration for calling a subprocess for each vendor?

The Split For Each shape is specifically designed for iterating through a collection of items, such as a list of vendors in this case. When you want to execute a subprocess for each item in a collection, using this shape allows you to create a separate path for each element, enabling parallel processing of those subprocesses.

This shape is highly beneficial in scenarios where the process needs to handle multiple items independently within the same workflow. Each iteration can run concurrently and independently, allowing for efficient processing and improving the overall performance of the application.

In contrast, other shapes are used for different purposes. For instance, the Parallel shape is used to execute multiple branches of a process simultaneously but isn't specifically tailored for iterative processing over a collection. The Decision shape is meant for logical branching based on certain conditions rather than for the repetitive execution of subprocesses. The Sequential shape, on the other hand, is used to specify a linear progression of tasks rather than iterating through a collection. Thus, the Split For Each shape is the most appropriate choice for initiating a subprocess for each vendor efficiently.