Invoicing
All invoices must be emailed to mse@invoices.oneadvanced.com.
Invoices sent to this address will be captured electronically to ensure they are processed quickly and efficiently.
Purchase order requirement
We operate a strict No PO, No Pay policy.
A valid Purchase Order (PO) number must be included on all invoices. Invoices without a valid PO number will be automatically rejected and returned to the supplier.
No payment will be made without a valid PO.
Processing and payment terms
Invoices will be processed once they have been approved by the service and the goods/services receipted.
Approved invoices will then be authorised for payment on the finance system.
Standard NHS payment terms of 30 days apply.
Invoice address
All invoices must be addressed to:
Mid and South Essex NHS Foundation TrustFinance Department – Accounts PayableBritannia HouseUnits 12–14 Britannia ParkComet WaySouthend-on-SeaEssexSS2 6GB
Statements and queries
To submit statements or invoice queries, email mse.mseapqueries@nhs.net or call 0300 443 0130.
Specific supplier guidance
Hospital pharmacy suppliers
If you receive purchase orders from the following pharmacy departments, continue using the following email addresses:
- Basildon — mse.basildonpharmacyinvoices@nhs.net
- Broomfield (Mid Essex) — mse.broomfieldpharmacyinvoices@nhs.net
- Southend — mse.southendpharmacyinvoices@nhs.net
Basildon Hospital catering suppliers
If you receive purchase orders from Basildon Hospital restaurant, submit invoices to mse.catering.invoices@nhs.net.
Agency/temporary staff suppliers
Purchase orders are not required.
Shifts should continue to be booked via the temporary staffing team and associated systems.
Reminder
Please make sure that your systems hold up-to-date contact details for the Trust and that all invoices are submitted with correct information to avoid delays.