Please note, electronic invoicing is mandatory for suppliers, invoices should not be sent via email or post unless there is prior agreement for this on your account.
If you have an agreement to send paper copy invoices on your account, we do not recommend that these are sent via post due to potential postal delays, please send a copy via email.
If your account is set up for electronic invoicing and we receive invoices sent via post or email, these will be rejected.
If more than 5 working days have passed and the invoice is still not showing on iSupplier, please submit a help request.