Updating Material Availability Data in R/3 Sales Order

Hi APO Gurus,

We have a requirement wherein we want to update Material Availability Data (MAD) to R/3 Sales Order from APO. We in GATP Back Order processing does not want use CPS and just want to update the MAD in R/3 Sales Order so rest of the calculation upto Delivery Date calculation in Sales Orders is performed at R/3 end.

So I want to know if we have any BADI/BAPI or Functional Module which will help us in updating MAD in R/3 Sales Order from APO BOP results.

Please advise,

Regards,

Rakesh Wade.