Hello @ronfroy

Could you describe your use case for this feature? For now, I'm a bit reluctant to add this feature to Symfony.

@lyrixx I want to validate a transition with multiple error depending of rich condition (sub entity, author...) after an user action. In my idea i get all available transition and call "->can" to generate error with guard listener.

Maybe you have a better solution?

@lyrixx Maybe we can just add a "validate" method to the workflow that call only a throw validation event.

@lyrixx https://github.com/symfony/symfony/pull/26076/files this is maybe a better way to achieve this?

With #26076 you will be able to know why a transition is blocked. I think it's the way to go indeed.

I'm closing this PR, but don't hesitate to re-open it if something is missing.