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Guidance

Government Commercial Agency suppliers: what you need to know

Guide for suppliers on a Government Commercial Agency (GCA) commercial agreement, who supply common goods and services to the public sector.

Updates to this page

From:
Government Commercial Agency
Published:
8 December 2014
Last updated:
28 September 2026
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  193. Included a note to remind suppliers and customers to check that the customer is eligible to use the agreement.

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  196. The latest customer URN list is uploaded.

  197. Updated CCS customer URN list

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  199. The Customer URN list has been updated again to fix some problems with the data shown.

  200. Updated the Customer URN list.

  201. Updated guidance and documents, specifically about how to report Management Information (MI)

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  203. We have updated the customer URN list.

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  210. The Mystery Shopper Service has been rebranded to the Public Procurement Review Service and the name has been changed to reflect this update

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  222. amended document ordering

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  229. MISO Guidance Notes updated and latest URN list uploaded.

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  231. Updated customer URN list. Added guidance documents to help suppliers use MISO to submit management information.

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  248. added new customer urn list

  249. New 'add organisation' form added. The form has been simplified with fewer fields and the addition of drop down options for 3 fields: country, sector and organisation type. This will make it easier to complete with less margin for error, saving suppliers time.

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  282. Added details of how to request copy of supplier marketing toolkit

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  285. URN list updated 12/1/2015

  286. Customer URN list updated 5 January 2015

  287. First published.

Submitting monthly management information

GCA management information (MI) submissions are a record of business contracted to or invoiced by suppliers on GCA commercial agreements.

All GCA suppliers need to complete MI submissions on a monthly basis for any agreements they are listed on as a supplier. Submissions are made using an online web portal.

Report management information to GCA.

Guides for the process:

If you need help submitting your MI, contact report-mi@gca.gov.uk.

Customer Unique Reference Number (URN) list

When completing an MI submission, you need to include the URN for your public sector customer.

You can download the latest customer URN list.

If you are doing business with a customer who is not on the URN list, submit a request to GCA to have them added. Complete the Add organisation request form (ODS, 10.4 KB) form and email to supplier@gca.gov.uk.

Suppliers and customers must both check that the customer can use the agreement they have selected to buy products or services from. Only the customers listed in the customer list for an agreement are eligible to use it. Eligible customers are listed in the contract notice for the agreement.

We will not check a customer’s eligibility to use our agreements when we add them to the customer URN list. The URN list is not a list of customers who are approved to use GCA agreements.

Audit and assurance

An annual supplier audit programme is carried out to provide assurance to the GCA board and the national audit office (NAO). The strategy is agreed in conjunction with the NAO and a risk based methodology is applied to identify suppliers to include in the annual audit plan.

This programme reviews:

  • the accuracy, appropriateness and completeness of management information returns made in relation to framework business
  • the timely and accurate payment of any GCA invoices
  • that financial reporting framework terms and conditions are met
  • the appropriate and accurate charging of customers making purchases under framework agreements

As a GCA supplier, your organisation is also required to provide an annual self-audit certificate confirming that you have robust systems in place to identify, record and report accurate and complete MI.

Promoting your place on a GCA agreement

Suppliers are encouraged to promote the fact that their goods and services are available through a GCA agreement to prospective public sector customers. To help you do this, we have created a Supplier Marketing Toolkit.

Supplier management

GCA manages suppliers on framework agreements.

There is a commercial agreement manager (CAM) for each agreement who can help you with any questions you have. Email info@gca.gov.uk if you are unsure who your CAM is.

A network of Crown Representatives also helps ensure the government is getting the best value for taxpayers from its contracts with strategically important suppliers.

Expiring agreements

When an agreement expires, buyers can no longer buy your products or services on that agreement. If you have an existing contract with a buyer that goes beyond the agreement expiry date you can still fulfil that contract, and you need to continue to submit MI while applicable.

When the GCA agreement you are on is expiring or being replaced you will need to retender for a place on the new agreement. Contracts are not renewed automatically.

You can see tender opportunities for upcoming deals on the GCA procurement pipeline

Improving public procurement practice

GCA operates a Public Procurement Review Service scheme providing a direct route for suppliers to raise concerns about poor public procurement practice.

Bribery Act 2010

GCA expects its suppliers to put appropriate controls and procedures in place to ensure compliance with the Bribery Act 2010.

Government Security Classifications Scheme

A new Government Security Classifications scheme was introduced in April 2014 making it simpler to classify government documents.

If you have any general enquiries please contact the Cabinet Office policy team at classifications@cabinet-office.x.gsi.gov.uk

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