Need help in SAP APO

Hi Experts,

I am new to APO, i got a requirement in APO to transfer the "Planned Order Information" from SAP APO to MES(third party System) system using Outbound IDOC while sales order is saved.

So, I need

> BAPI to fetch/extract Planned Order Details in APO,

> BASIC IDOC type for Planned Order Details.

any information will be helpfull.

thanks in advance...