Guide / Every rule

Ad-hoc sub-process with a start or end event

The check bpmnlint/ad-hoc-sub-process, in the group Modelling rules.

Error

Why it matters

An ad-hoc sub-process has no defined start or end: its activities run when someone chooses, so an event marking either is meaningless.

How to fix it

Delete the start and end events inside the ad-hoc sub-process.

Where you see it

The editor puts a marker on the element while you draw, and the Problems tab of the sidebar lists it under Rules, with the rule name bpmnlint/ad-hoc-sub-process. In a terminal, penstock check --only rules reports it.

To change how strict this rule is, set ad-hoc-sub-process to error, warn or off in your .bpmnlintrc. See Validation.

Rule details

Read more: Validation with bpmnlint. All rules: Every rule.