Hi Venu,
The GTS System blocks the BPs in SPL Screening, when there is a match with SPL entry for the BP in the system. hence we need to verify whether it is a true hit or false hit. here the Positive /Negative list will come in front of us. SAP has provided this option to utilize for a long term usage.
Because when you find the BP blocked and you need to verify the BP and move him to Negative List if it is a true hit . if it is a false hit and you find the BP is correct one, then you can move it to Positive List . so, as told by Kul Vaibhav, the BPs existing in Negative List /Positive List are screened using Periodically - Check Positive List Business Partners(/n/SAPSLL/SPL_CHSB1PLO) and check Negative List Business Partners (/n/SAPSLL/SPL_CHSB1NLO) .
But if you did not make any changes to the BPs which are in Blocked (when those are true hits) you can do various types of screenings available in the GTS System.
Hope now you understood the process in GTS.
if you still have any clarifications , please let us know.
Please mark if it is helpful.
Thanks,
Srinivas Yellampalli