Promotion - How to set up Buy5 get1/ Buy10 get3 / Buy 15 Get 4
How to increment the get items based on the qty.
Lets say if a customer buys 5 Qty Item A he will get 1Qty B Free. If he buys 10 A then he gets 3 B free (instead of 2), If he buys 15 A then he gets 4Qty of B.
Can you please let me know how to set-up this scenario.
Thanks
Satish