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2I’m trying to better understand the practical differences and limitations between Business Rules, JavaScript (client-side scripting), and Workflows/Power Automate in Dynamics 365, especially in terms of execution behavior.
From my experience, I’ve noticed differences around:
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When logic is triggered (e.g., on form load, field change, save, post-save)
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Whether execution is synchronous vs asynchronous
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Control over pre-save vs post-save validations
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Ability to block or allow record save
For example, in a scenario where:
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A quote should not be submitted if the discount exceeds 30% unless approved
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And in some cases, the save itself should be prevented based on validation
I’m trying to understand:
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Which approach is best suited for pre-save validation vs post-save automation?
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When should we prefer Business Rules over JavaScript or vice versa?
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What are the key limitations of each (especially around blocking save and execution timing)?
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How do Workflows/Flows compare when real-time vs background processing is required?
It would be really helpful if someone could explain this with a practical example or decision-making approach.
Thanks in advance!
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