How to restrict multiple sample creation when receive material into multiple Child Lot having one pa

Hi,.
 We have a receipt process of one PO for one parent lot and multiple child lot, we do not need a sample for each child lot but sample is automatically generating for each child receipt process.
We do not want to have multiple sample for each child lot. Only parent lot sample is sufficient . Is there any way to resolve this issue?

Can AME help on it? if yes then any help is appreciated. We are in R12.1.1

Thanks