Impact of STP on CUSIP/ISIN

For Originations (OL) commitments booked through Straight Through Processing (STP) from Agency (LB) tranche for self-participants, the following update is done to the OL commitment.

OL commitment CUSIP is updated with the LB Tranche CUSIP value.
OL commitment Ext CUSIP/ISIN is updated with the LB Tranche Ext CUSIP/ISIN.
New display field Ext Deal CUSIP/ISIN at OL commitment is updated with the LB Tranche Ext Deal CUSIP/ISIN.

For Originations (OL) commitments linked to the Agency (LB) tranche for self-participants, through the Participant Commitment Linkage screen, the following updates are done to the OL commitment.

OL commitment CUSIP is updated with the LB Tranche CUSIP value.
OL commitment Ext CUSIP/ISIN is updated with the LB Tranche Ext CUSIP/ISIN.
New display field Ext Deal CUSIP/ISIN at OL commitment is updated with the LB Tranche Ext Deal CUSIP/ISIN.

For Originations (OL) commitments relinked to the Agency (LB) tranche for self-participants through the STP Relink screen, the following updates are done to the OL commitment.

OL commitment CUSIP is updated with the LB Tranche CUSIP value.
OL commitment Ext CUSIP/ISIN is updated with the LB Tranche Ext CUSIP/ISIN.
New display field Ext Deal CUSIP/ISIN at OL commitment is updated with the LB Tranche Ext Deal CUSIP/ISIN.

For contract amendment (CAMD) propagated at commitment through Straight Through Processing (STP) from Agency (LB) tranche for self-participants, the following updates will be done to the OL commitment.

OL commitment CUSIP is updated with the new LB Tranche CUSIP value.
OL commitment Ext CUSIP/ISIN is updated with the new LB Tranche Ext CUSIP/ISIN.
New display field Ext Deal CUSIP/ISIN at OL commitment is updated with the New LB Tranche Ext Deal CUSIP/ISIN.