https://bpm.tips/tag/parallel Powered by Question2Answer https://bpm.tips/3537/does-handle-concurrency-instance-locking-task-claims-parallel-branches-editing-same-data-modified-another-user-errors We get errors when two users work on tasks of the same instance at once, and parallel branches sometimes overwrite each other's changes to the same business object. How does BAW lock data, and how do we design around it? https://bpm.tips/3537/does-handle-concurrency-instance-locking-task-claims-parallel-branches-editing-same-data-modified-another-user-errors Sun, 06 Sep 2026 13:56:46 +0000 https://bpm.tips/3443/how-do-i-implement-a-multi-instance-for-each-item-activity-in-a-bpd-and-collect-the-results An order has N lines and each line must be checked by a person, possibly in parallel. How do we model "one task per line" in a BPD, wait for all of them, and gather the outcomes back into the order? https://bpm.tips/3443/how-do-i-implement-a-multi-instance-for-each-item-activity-in-a-bpd-and-collect-the-results Sun, 06 Sep 2026 13:40:09 +0000