How to use pricing engine API QP_PREQ_PUB to get Price Break type of modifiers

 Hello All

We are currently importing sales orders via the open interface with Calculate Price Flag as FREEZE PRICE. Later we have realised that CHRM needs price breaks to be applied on the sales order lines for them to be eligible for Fund Accrual in CHRM

Now, we are trying to make a call to the Pricing Engine API QP_PREQ_PUB.PRICE_REQUEST which should ideally return us the Price Break (List Header Type Code PRO and List Line Type Code PBH) information

However, it is only returning back the DIS and DLT type of discounts which are not applicable in our scenario. The code for the call to the API is as below. Any inputs would be great. Thanks.