VCSS is a voluntary participation program; however any vendor desiring to participate must have a valid Unique Entity Identifier (UEI) and must register in the System for Award Management (SAM) prior to registering in VCSS. Vendors can contact SAM at SAM.gov to obtain a UEI. The vendor must ensure its SAM registration remains active at all times.
VCSS provides web access to the transactions of the GSA’s customers. The data can be viewed by the representatives of the customer organization and also by the activity that processes their IPAC transactions. Customers must register their GSA-issued Account Codes (formerly known as BOAC or AGBU Codes). IPAC activities must register their ALC codes.