Please reply to: Exchequer Services
Email: p2psupport@enfield.gov.uk
Phone: 020 8379 4567
Your Ref: ERP
Date: 15 July 2026
Important: Changes to purchase orders and invoicing arrangements from October 2026
Dear Enfield Council Supplier,
As previously communicated, the council is transitioning to a new Enterprise Resource Planning (ERP) system. This change will affect how purchase orders (POs) are issued and how invoices are submitted.
To avoid any delays to payment, please ensure this information is shared with all relevant teams within your organisation, including accounts receivable, billing teams and any third-party invoicing providers.
What you need to do
By 18 September 2026:
- Submit all invoices relating to goods and services received before the transition date
- Ensure any outstanding invoices are sent as soon as possible
From 6 October 2026:
- Use only the new PO numbers issued by the council
- Send invoices to the council's new invoice mailbox (details will be provided nearer the transition date)
- Do not send invoices to Restore Digital once the new arrangements are in place
Purchase order changes
To enable the migration to our new ERP system, all existing POs will be closed on 18 September 2026. No open purchase orders will transfer to the new system.
- All existing POs will be closed on 18 September 2026
- New POs will be issued from 6 October 2026
- New invoice submission details will be provided before go-live
If you provide regular services and invoice the council on a monthly or quarterly basis, you may receive more than one PO during the 2026/27 financial year. These POs may cover shorter periods than usual and are required solely to support the system transition. This does not affect the validity of any existing contract or agreement.
Invoicing arrangements
The current finance system will be closed to goods receipting and invoice processing after 18 September 2026 in preparation for the ERP implementation.
Please note:
- All invoices relating to existing POs should be submitted by 18 September 2026
- From 6 October 2026, all invoices must quote the new PO number
- Invoices submitted against closed or obsolete PO numbers may be delayed or returned
- Until further notice, continue to use the current invoicing arrangements. We will provide details of the new invoice mailbox closer to the transition date.
Actions required
Please ensure that:
- Your accounts receivable and billing teams are aware of these changes
- Any external invoicing providers, agents or shared service centres are informed
- Outstanding invoices are submitted by 18 September 2026
- Your systems and processes can accommodate the new PO numbers issued from October 2026
Failure to follow these arrangements may result in delays to invoice processing and payment.
Further information
If you have any questions, please contact your usual council representative in the first instance.
Thank you for your cooperation and support as we implement this important system change.
Kind Regards
Jeanne Harkins
Head of Exchequer Services
Revenues and Transactional Services
Updated FAQ’s for suppliers
1. Why did Enfield Council send this letter?
Enfield Council is getting a new purchase order (PO) and invoicing system. Because of this, some things are changing.
2. What is changing with purchase orders?
All existing POs will be closed by 18 September 2026. No open purchase orders will carry forward to the new financial year.
3. Will I get a new purchase order?
Yes, from 6 October 2026, new PO numbers will be issued.
4. How can I get my new purchase order?
Your usual council service contact will ensure a new PO is raised and sent to you.
5. When should I send my invoices for services up to the end of September 2026?
To ensure invoices are settled and paid for work completed by the end of September, send the invoice by 18 September 2026.
6. I have an outstanding invoice that is due for payment before 18 September 2026, who should I contact?
Speak with your council service contact that would have raised the purchase order.
7. I am not sure if I have any outstanding invoices that are due for payment, who should I contact?
Speak with your council service contact that would have raised the purchase order.
8. What happens if I do not send an invoice in time by 18 September 2026?
Speak with your council service contact that raised the purchase order for you. If we receive a late invoice and cannot process this and make payment by 18 September 2026, the purchase order will be closed.
A new PO will be issued to you from 6 October, and you will be requested to re-raise the invoice, quoting the new PO number. The new invoice will be used to process the payment.
9. How long will the new POs last?
The new POs will cover 6 October 2026 to 31 March 2027 only.
10. Why might I get more than one PO this year?
If you send invoices every month or every few months, you might get more than one PO. One to cover the period 1 April 2026 to 30 September 2026 and another from October 2026 when we move to our new system.
Your contract remains unaffected.
11. What PO number should I use from 6 October 2026?
From 6 October 2026, you must use the new PO numbers. Do not use the old ones.
12. What happens if I use an old PO number?
Your invoice quoting the old PO number may not be paid and returned.
13. Who should I tell about these changes?
You should tell:
- your billing team
- your finance team
- anyone else who sends invoices for you
14. What else do I need to do?
Make sure your systems can recognise shorter POs during 2026/27.