For Mix and match discount, there's not way to setup a max limit on the lines when configuring a Line specific (mix and match discount).

It would be great to have the limit field which is on the simple discount to be available on Mix and match discount.

The business requirement for this was when the business asked me to setup a Buy 1 of X and get 1 (upto 3) of Y for 20% off.

Buy 2 of X and get 4 (upto 6) of Y for 20% off.

Mix and match allow you to setup Buy 1 of X and get 1 of Y for 20% but in my case, it can be Buy 1 of X and 2 of Y and get 20% off and also buy 1 of X and 3 of Y to get 20%.

Current, mix and match setup only allow us to setup Buy 1 of X and 1 of Y for 20% off. or or Buy 1 of X and 2 of Y for 20%.