SAPSLDAPI not required in Single Stack

Hi All,

My query is regarding the SAPSLDAPI RFC destination which we are not creating in PO(single stack). If we see in PI 7.1, SAPSLDAPI is used to retrieve the business system details.

How we are getting the business system details from SLD in PO if SAPSLDAPI is not mandatory to be created for proxy communciation in SAP PO? Is there any Java code which is getting these details?

Regards,

Shankul