Parallel Sub-Workflow Execution with Awaiting Completion

This workflow is designed to facilitate the simultaneous processing of multiple items, enhancing efficiency in marketing tasks that require concurrent actions. It begins with a manual trigger to initiate the process, allowing users to activate the workflow at will. The workflow splits input items into batches, enabling parallel execution of tasks. Each item processed can independently perform actions, such as sending data to an external service or updating records. Once the parallel tasks are i