How to get Requirements date that displayed in t-code '/SAPAPO/RRP3' ?

Hi Expert:

How can I get the requirements date and quantity info for material and plant we can see using t-code '/SAPAPO/RRP3' ? Does APO have any function module to get these info. Just like we can use function 'MD_STOCK_REQUIREMENTS_LIST_API' to see the info that we can see in MD04.

Many thanks!