Skip to Content
eOffer/eMod is a tool to submit Contract Offers and Contract Modification requests to GSA Federal Acquisition Service online.

Before You Begin - eOffer Checklist

  1. Have you reviewed the solicitation you want to make an Offer against?
  2. Have you passed the "Pathways to Success" training?
  3. Did you get your DUNS number?
  4. Have you registered with SAM?
  5. Have you applied for a digital certificate?

1. Have you reviewed the solicitation you want to make an Offer against?

Download and read the solicitation for the MAS Schedule that you want to make an Offer against by either going to or to This will help you determine what artifacts are required to make an Offer against the schedule.

2. Have you passed the "Pathways to Success" training?

A prerequisite for participation in the MAS Schedules Program is the successful completion of the "Pathway to Success" education seminar. Vendors may attend either a live presentation or complete the web based presentation posted on the Vendor Support Center (VSC) under the "Vendor Training" tab. Pathway to Success is designed to assist prospective GSA Schedule contractors in making informed business decisions as to whether obtaining a GSA Schedule contract is in their best interests. The presentation provides background information on the GSA Schedules Program and encompasses a variety of other topics, including:

  • What are GSA's expectations for a vendor to become a successful Schedule contractor;
  • How to compete and succeed as a GSA Schedule contractor in the government marketplace;
  • How to develop a GSA Schedule-specific business plan; and
  • How to submit a quality Offer, the proposal submission process, and the GSA Schedule solicitation.

3. Did you get your DUNS Number?

Go to the Dun and Bradstreet page and apply for a DUNs number.

4. Have you registered with SAM?

Go to the web page to register your company with SAM (formerly for CCR and for ORCA)

5. Have you applied for a Digital Certificate?

You may contact one of our Industry Partners to renew or get additional digital certificates. The cert must be a ACES Level 3 certificate "Business Identity Certificate" to ensure that we know who the Government is doing business with and to create a legally binding contracting. Industry Partners who currently provide Level 3 Digital Authentication Certificates for the GSA vendor community are:

How to get a Digital Cert if you are a foreign company

If you are a Foreign Company trying to do business with the General Services Administration using eOffer/eMod and need a digital certificate, follow the instructions below:

Complete the application on the Opens in a new window (non-Government) site for a "Aces Business Representative Certificate". Complete the Aces Business Representative application. The form does not currently accept foreign addresses, so in the field for the address put Virginia, 22030, United States. In the text box below put the actual foreign address. Submit the form and print the documents to be notarized. Then have the form notarized through one of the following methods:

  • Go to a US Embassy and have the documents notarized.
  • If they are in the US they can go to any notary, or they can to go the ORC office and have the documents reviewed.

If they have questions and need to speak to someone at ORC, they can use the number below or email them.

The ORC ACES Customer Service Team
(888) 816-5503

They need to tell the person they are speaking with that they need a ACES Business Representative Certificate and that they are a foreign company.