Before creating an invoice to send to your customer via the InvoiceNow Network, please make sure you have synced your contacts in LinkFor and have the required customer enabled under the e-invoicing Ready section of the "My Network" page.
To sync your contacts as updated in your accounting software, please log in to your LinkFor account, go to the My Network page and click on the Synchronise Contacts button as shown below. Once the contacts are synced, make sure they are enabled if you require to send e-invoices to them.

E-invoices are sent based on the UEN
You can also update the UEN directly through the My Network page - simply click on the update UEN button.