Is there a way in Netsuite that I can sell products for the first 10 users with x price and for the remaining there after with y price

Price quantity break in NetSuite?

Correct. There is a setting called Use Marginal Rates, which you should use.

My Use case is kind of like for different transactions and not same transactions

Oh, first 10 users? I misread. Then SuitePromotions with a maximum use of 10 times is probably the best path to take.

okay thanks