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We have a strict 'No PO (purchase order), No Pay' policy.
All invoices billed to the Met must contain a PO number. A valid PO number will have a unique 11-digit number starting with 11400.
Please do not accept any orders from Met staff that do not include a PO number. If you're in doubt, always contact us first.
We may not be able to pay you if you deliver goods or services without either a:
Please send invoices by email to SSCL or through our e-invoicing system.
We pay most suppliers within 30 days. If you're a small or medium enterprise (SME), we usually pay within 10 days.