Get active purchase orders for materials

Hallo,

I'm not sure, if this is the right place to ask for this, but I need to get all open purchase orders for some given materials.

The problem is i've only got access to the BAPI's (i'm using them in an interface to another system)

and sometimes there are many (maybe about 3000) materials to check at once.

I know I could use BAPI_PO_GETITEMS and check for every material, but as mentioned

there can be a large number of materials to check and so this is REALLY slow.

I've found the Transaction ME2M in which you can provide a list or range of materials.

Is there something like this as a BAPI?

Best wishes,

Torben