The step-by-step instructions for submitting bids can be found here.
The vendor is solely responsible for ensuring timely submission of their electronic solicitation response. Failure to allow adequate time prior to the solicitation end date to complete and submit a response to a solicitation, particularly in the event technical support assistance is required, places the vendor and their response at risk of not being accepted on time.
If a vendor does not have electronic accessibility to submit an electronic bid response, the vendor must contact the bid’s buyer of record at least five (5) days prior to the due date of the bid to determine if an alternate process is available to accept the vendor’s bid. However, at this time under the current circumstances, electronic bid submission is the only certain way to be able to submit your bid response.