What triggers changes to the lastUpdateInstant for users?

[ryan 1]

What field changes or actions result in an update to the lastUpdateInstant on a user record?

[dan]

@ryan-1 Great question. This is an implementation detail so isn't documented.

While you can definitely test this out, it may change in the future.

Can you help me understand your use case? Maybe there's a different way to achieve what you are trying to do.