How enable auto smooth in object data properties?

When I enable DataTransfer on one of the objects.
I’m getting this message

enable auto smooth in object data properties

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But it seems to be disabled for me

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Can someone explain to me what’s wrong?

Are you saying you cannot click the checkbox On?

Blender tells you: If you wanna use this then you have to enable that.
But also do not change anything of your settings because then users also expect that it disable that when the modifier will be dumped. But then it has to remember this… but also a user may wanna have keep it… so blender has to ask… but then users will complain about this annoying question because…

See ? It would be an endless source of complains… so it simply informs the users with the first sentence in this post. :stuck_out_tongue_winking_eye: