How to create users in multiple clients?

Hello Gurus,

I want to know if there is any way to create a particular user in multiple clients?

For example, if we take a hypothetical situation like a user ABC to be created in 100 clients of a particular instance how will we do that?

I know we can create users in multiple client if we have got CUA configured . Is there any other work around?

Thanks in advance for the guidance!

Abhilash