Separate sales and return transaction for POSDM interface to ECC

Hi experts

We have a requirement to separate sales and return transaction movement types (251 and 252) for even the same articles.

Currently, we are using two-step process but the aggregation will combine both sales and return transactions together.

(For example, if i sell 2 article A and return 1 article A, the system will aggregate to selling only 1 article A with movement type 251.

But we want to have movement type 251 posting for 2 article A, and movement type 252 posting for 1 article A.)

Would you have any recommendation in terms of configuration?

Thanks a lot for that.

BR

Dom