I generally use it as shorthand for, “when and not if we call the vendors with this configuration, they cannot pass the buck and say it isn’t a configuration th

I generally use it as shorthand for, “when and not if we call the vendors with this configuration, they cannot pass the buck and say it isn’t a configuration they support”. “Best practice” as an endorsed configuration blessed by the vendor support engineering organization is my go-to sign-off to get quick cooperation from the vendors.