Client need to be opened for what all objects?

Hi Experts,

I need to list all the objects for which clients need to opened for customizing/master data download, for ex. when we are downloading condition records we need client to be in open/modifiable state, So what I need now is suggestions based on your experience wherever you feel that cleint needs to be opened for this activity .

Thanks for sharing your experience.

With Regards,

Mayank Choudhary