How to reference ET_MDPS entries in BADI "PPH_MRP_UPDATE_BADI" in S/4 HANA 1809 and above

Hello All,

We have a requirement to reference "ET_MDPS" Table with values from "CL_PPS4_MRP_RUN=>MAT_PLANT_MRP_PREPARE_SINGLE" (which is a "READ-ONLY AMDP Method....screenshot shown), into BADI "PPH_MRP_UPDATE_BADI=>PURREQ_UPDATE" (which is not a READ-ONLY Method).

Could anyone suggest how this could be achieved?

Thanks,

Joy