To send aggregated B2C sales invoices from system to GST InvoiceNow:

Here’s the step-by-step process (as shown in your screenshots):

1) Go to the Peppol application by clicking on its icon in the main dashboard or by using the application menu.

2) Invoices List View 

Navigate to Invoicing → Customers → Invoices.

On the Invoices list, you’ve selected multiple B2C invoice. Under the Action dropdown, there’s an option "Send to InvoiceNow"

You select multiple B2C invoices and trigger the aggregation with "Send to InvoiceNow".

3) B2C Outgoing Invoice Detail View

This is the resulting aggregated B2C invoice record. The system generates one consolidated B2C invoice, sends it out, and shows the response from the authority/network.

To get more details how to send an aggregated B2C sales invoice to GST InvoiceNow in Metro Accounting System, please do contact us at  support@metrogroup.solutions