Current Crown Commercial Service suppliers: what you need to know

Guidance for suppliers who already supply goods or services to the public sector via the Crown Commercial Service (CCS).

Submitting monthly management information

All CCS suppliers must submit monthly management information (MI) returns. This is done online through the MISO system. Guidance to the process can be found in the documents below:

Failure to submit MI returns correctly or within the agreed timescales may incur admin fees (MS Excel Spreadsheet, 12.1KB)

Customer Unique Reference Number (URN) list

You will need to include the unique reference number (URN) for each customer listed on the return. Download the latest Customer URN List - 04.10.18 (MS Excel Spreadsheet, 3.6MB)

Customer URNs can be accessed through MISO to identify the URN for your customer organisations. If they are a new customer and not present on the list, you can submit a request to CCS to have them added to the system.

Download Customer URN List - 04.10.18 (MS Excel Spreadsheet, 3.6MB) the latest Customer URN List.

Please complete the add organisation request form (MS Excel Spreadsheet, 40KB) form, which should be read in conjunction with the guidance document.
Once complete please email to

Promoting your place on a CCS agreement

Suppliers are encouraged to promote the fact that their goods and services are available through a CCS agreement to prospective public sector customers. To request a copy of the supplier marketing toolkit which includes logos and guidance please contact your CCS agreement manager or email

Supplier management

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

Audit and assurance

An annual supplier audit programme is carried out to provide assurance to the CCS 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
  • the timely and accurate payment of invoices
  • the appropriate and accurate charging of customers making purchases under framework agreements

As a CCS 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 framework spend.

Expiring agreements

When the CCS 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 view forthcoming tender opportunities on the CCS procurement pipeline

Improving public procurement practice

CCS operates a Mystery Shopper scheme providing a direct route for suppliers to raise concerns about poor public procurement practice.

Bribery Act 2010

CCS 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

Published 8 December 2014
Last updated 11 October 2018 + show all updates
  1. New URN list uploaded
  2. New URN list uploaded
  3. New URN list uploaded
  4. New URN list uploaded
  5. new URN list uploaded
  6. new URN list uploaded.
  7. new URN list uploaded
  8. New URN list added
  9. New customer URN list uploaded
  10. New URN list uploaded
  11. amended document ordering
  12. Terms and conditions removed - out of date
  13. new URN list added
  14. URN list uploaded
  15. Amended hyperlink
  16. added guidance doc link
  17. amended mention of URN list.
  18. MISO Guidance Notes updated and latest URN list uploaded.
  19. Customer URN list updated.
  20. Updated customer URN list. Added guidance documents to help suppliers use MISO to submit management information.
  21. Customer URN list updated.
  22. Updated customer URN list.
  23. Updated URN request guidance document.
  24. Updated URN list.
  25. Updated customer URN list.
  26. Updated URN list
  27. Updated URN list
  28. Updated URN list.
  29. Updated URN list.
  30. URN list updated.
  31. Customer URN list updated
  32. Updated customer URN list
  33. Updated Customer URN list
  34. Updated Customer URN listing
  35. Updated Customer URN list
  36. Customer URN list updated
  37. added new customer urn list
  38. 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.
  39. Updated latest URN list.
  40. Uploaded new URN list
  41. Updated Customer URN list
  42. Updated latest URN listt
  43. Updated Customer URN listing
  44. Updated latest URN list
  45. Customer URN list updated
  46. Updated URN list
  47. Updated URN list
  48. Updated URN list
  49. uploaded latest customer URN list for CCS suppliers
  50. Updated URN list
  51. Updated Customer URN listing
  52. Updated URN List
  53. Updated URN List
  54. Updated URN List
  55. Updated URN List
  56. Updated URN List
  57. Updated URN List
  58. Updated URN list as an XL file
  59. Updated URN list
  60. Updated URN list
  61. Updated URN List
  62. Updated URN list
  63. Updated text under download the latest URN section
  64. Updated Customer URN list
  65. Updated customer URN list
  66. Updated Customer URN list
  67. Updated customer URN list
  68. Updated URN list
  69. Updated customer URN list
  70. Customer URN list updated
  71. Added details of how to request copy of supplier marketing toolkit
  72. Updated Customer URN list
  73. Updated Customer URN list
  74. URN list updated 12/1/2015
  75. Customer URN list updated 5 January 2015
  76. First published.