Completing Vendor Registration in COMMBUYS.pdf
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- Solicitation number
- BD-27-1107-FREG5-ACCOU-133129
- Issued by
- Hampshire County, Massachusetts
About this file
This is a job aid document provided by the Operational Services Division of the Commonwealth of Massachusetts that outlines the vendor registration process in COMMBUYS, the state's procurement system. The document provides step-by-step instructions for vendors to register and establish accounts necessary to receive bid notifications, submit quotes, receive bid awards, and obtain purchase orders through COMMBUYS. The registration process requires vendors to complete seven tabs within the system: Company Information, Administrator, Address, Terms, Categories and Certifications, Commodity/Service Codes, and Summary. Vendors must designate a Seller Administrator to maintain business information and are required to select at least one United Nations Standard Product and Service Code (UNSPSC) to categorize their goods or services. Upon completion of registration, vendors receive a confirmation email containing login credentials and a temporary password that must be changed upon first sign-in.
The document specifies that all fields marked with an asterisk are mandatory during registration, including business structure, business type, and acceptance of the Agreement and Terms of Use for Sellers. No pricing information, contract terms, or award amounts are discussed in this guidance document, as it serves solely as instructional material for the registration and account setup process. Vendors are encouraged to add multiple users to their accounts by referencing additional job aids. Support is available through the OSD Help Desk via email at OSDHelpDesk@mass.gov or by phone at 888-627-8283 during business hours, and training inquiries can be directed to OSDTraining@mass.gov.
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Text version
OFFERED BY
Completing Vendor Registration in
COMMBUYS
Operational Services Division
This Job Aid shows how to complete the Vendor registration process in
COMMBUYS.
Overview
Launching COMMBUYS
Registration
Completing the Company Information Tab
Completing the Administrator Tab
Completing the Address Tab
Reviewing the Terms Tab
Completing the Categories and Certifications Tab
Completing the Commodity/Service Codes Tab
Reviewing the Summary Tab
Completing Registration
Changing Temporary Password
Next Steps
Contact
4/10/26, 10:54 AM Completing Vendor Registration in COMMBUYS | Mass.gov https://www.mass.gov/info-details/completing-vendor-registration-in-commbuys 1/6 https://www.mass.gov/ https://www.mass.gov/orgs/operational-services-division
Vendors must register in order to receive notifications about bid opportunities, submit quotes, receive bid awards, or be issued Purchase Orders through
COMMBUYS. Vendor accounts specify a Seller Administrator who will maintain vendor business information in COMMBUYS.
1. Launch COMMBUYS (https://www.commbuys.com/bso/)
2. Select Supplier Registration
1. Select the Tax ID type for your company (Employer Identification Number [EIN] or Social Security Number [SSN])
2. Enter the 'Tax ID,' 'Company Name,' 'Email Address,' and 'Country'
3. Select Register
COMMBUYS is a tab-based system. The following tabs need to be completed during registration: Company Information, Administrator, Address, Terms, Categories and Certifications, Commodity/Service Codes, Summary.
1. Complete the Company Information tab. Fields marked by an asterisk (*) are required. Confirm Tax ID, Company Name, and Email Address
2. Enter a brief description in the 'Business Description' field
3. Select Save and Continue Registration
1. Complete the Administrator tab. Fields marked by an asterisk (*) are required
a. Type your Login ID. This is your username and will not be editable after registration
Overview
Launching COMMBUYS
Registration
Completing the Company Information Tab
Completing the Administrator Tab
4/10/26, 10:54 AM Completing Vendor Registration in COMMBUYS | Mass.gov https://www.mass.gov/info-details/completing-vendor-registration-in-commbuys 2/6 https://www.commbuys.com/bso/
b. The Login Question and Login Answer are used for resetting forgotten
Login credentials
2. Select Save and Continue Registration
a. An email notification will be sent to the email address entered here including the Login ID and a temporary password
1. Verify the Address tab fields and edit if necessary
a. This information will be connected to your company profile published on
COMMBUYS
2. Select Continue Registration
1. Select Continue Registration
The following tab includes mandatory, optional, and supplier diversity categories.
The Supplier Diversity Office (SDO) is responsible for updating certification statuses. Explore SDO Certifications (/orgs/supplier-diversity-office-sdo?
_gl=1%2As8sfws%2A_ga%2AMTU4OTcyMDMyMy4xNzYyMTg0OTQy%2A_ga_MCLPEGW7WM%2AczE3NjI yODA5ODEkbzEkZzAkdDE3NjIyODA5ODEkajYwJGwwJGgw).
1. Mandatory categories:
a. Select the checkbox that best describes your Business Structure
b. Select the ‘Yes’ checkbox in the Agreement and Terms of Use for Sellers category
c. Select the checkbox that best describes your Business Type
2. Select Save and Continue Registration
Completing the Address Tab
Reviewing the Terms Tab
Completing the Categories and Certifications Tab
Completing the Commodity/Service Codes Tab
4/10/26, 10:54 AM Completing Vendor Registration in COMMBUYS | Mass.gov https://www.mass.gov/info-details/completing-vendor-registration-in-commbuys 3/6 https://www.mass.gov/orgs/supplier-diversity-office-sdo?_gl=1%2As8sfws%2A_ga%2AMTU4OTcyMDMyMy4xNzYyMTg0OTQy%2A_ga_MCLPEGW7WM%2AczE3NjIyODA5ODEkbzEkZzAkdDE3NjIyODA5ODEkajYwJGwwJGgw https://www.mass.gov/orgs/supplier-diversity-office-sdo?_gl=1%2As8sfws%2A_ga%2AMTU4OTcyMDMyMy4xNzYyMTg0OTQy%2A_ga_MCLPEGW7WM%2AczE3NjIyODA5ODEkbzEkZzAkdDE3NjIyODA5ODEkajYwJGwwJGgw https://www.mass.gov/orgs/supplier-diversity-office-sdo?_gl=1%2As8sfws%2A_ga%2AMTU4OTcyMDMyMy4xNzYyMTg0OTQy%2A_ga_MCLPEGW7WM%2AczE3NjIyODA5ODEkbzEkZzAkdDE3NjIyODA5ODEkajYwJGwwJGgw
The United Nations Standard Product and Service Codes (UNSPSC) support categorization of goods and services in COMMBUYS for both buyers and businesses. At least one code is needed to register; additional codes may be added later.
1. Use the UNSPSC Keyword field or the UNSPSC Segment-Family and UNSPSC
Class dropdown menus to add codes to your Vendor Profile. For more information on how to search for UNSPSCs, refer to the Maintain UNSPSC Job
Aid
2. Select the codes relevant to your business
3. Select Save and Add More to search for additional codes
4. Select Save and Continue Registration
1. Review the Summary tab information for accuracy
a. To correct any information, return to the appropriate tab, modify, and save changes
b. Return to the Summary tab
2. Select Complete Registration
1. Select OK on the pop-up message to be redirected to the COMMBUYS landing page
2. Open the confirmation email with account information and your login credentials, including a temporary password
3. Copy the temporary password
4. Select Sign In on the COMMBUYS landing page
5. Enter the Login ID and temporary password
6. Select Sign In
Reviewing the Summary Tab
Completing Registration
4/10/26, 10:54 AM Completing Vendor Registration in COMMBUYS | Mass.gov https://www.mass.gov/info-details/completing-vendor-registration-in-commbuys 4/6
1. Paste the temporary password into the 'Current Password' field
2. Type your new password in the 'New Password' field
3. Type your new password in the 'Confirm New Password' field
4. Select Submit
It is recommended to add multiple users to your COMMBUYS Vendor Account.
Refer to the Maintain and Add Users to COMMBUYS Vendor Account (/doc/maintain-and-add-users-to-commbuys-vendor-account/download) Job Aid for guidance.
Changing Temporary Password
Next Steps
Contact
OSD Help Desk
Online
OSDHelpDesk@mass.gov
Phone
888-627-8283
Available Monday through Friday, 8:00 a.m. - 5:00 p.m.
Training Contact Information
Online
OSDTraining@mass.gov
4/10/26, 10:54 AM Completing Vendor Registration in COMMBUYS | Mass.gov https://www.mass.gov/info-details/completing-vendor-registration-in-commbuys 5/6 https://www.mass.gov/doc/maintain-and-add-users-to-commbuys-vendor-account/download https://www.mass.gov/doc/maintain-and-add-users-to-commbuys-vendor-account/download mailto:OSDHelpDesk@mass.gov tel:8886278283 mailto:OSDTraining@mass.gov
State Organizations (/massachusetts-state-organizations)
© 2026 Commonwealth of Massachusetts.
Mass.gov® is a registered service mark of the Commonwealth of Massachusetts.
RELATED
OSD Vendor Training (/osd-vendor-training)
Job Aids for Vendors Using COMMBUYS (/lists/job-aids-for-vendors-using-commbuys)
Phone
Main (617) 720-3300
Open M-F 9am-5pm
TTY Line (617) 727-2716
Fax
Fax (617) 727-4527
Address
One Ashburton Place, Room 1608, Boston, MA 02108-1552
Directions (https://maps.google.com/?
q=One+Ashburton+Place%2C+Room+1608%2C+Boston%2C+MA+02108-1552)
4/10/26, 10:54 AM Completing Vendor Registration in COMMBUYS | Mass.gov https://www.mass.gov/info-details/completing-vendor-registration-in-commbuys 6/6 https://www.mass.gov/massachusetts-state-organizations https://www.mass.gov/osd-vendor-training https://www.mass.gov/lists/job-aids-for-vendors-using-commbuys tel:6177203300 tel:6177272716 https://maps.google.com/?q=One+Ashburton+Place%2C+Room+1608%2C+Boston%2C+MA+02108-1552 https://maps.google.com/?q=One+Ashburton+Place%2C+Room+1608%2C+Boston%2C+MA+02108-1552
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