In Metro, extracting and packaging non-PEPPOL sales credit notes for submission to C5 (such as tax or regulatory authorities) requires exporting the relevant data in the required format. Here's a step-by-step approach: 

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

View  Accounting Dashboard.

2) Navigate to the "Customers >Credit Notes."
 

3) Select the Credit Note from the list view for which you want to send to the C5, and then click the "Send to InvoiceNow" button.​

Note: Please make sure you have done setup InvoiceNow (Peppol) configuration in Metro Accounting System.
 

4) ​This action will open a list view. Next, click the "Send" button to send the Credit Note.

5) Check the status "Send Success"

To get more details how to extraction and packaging of non-PEPPOL sales credit notes be performed for submission to C5, please do contact us at  support@metrogroup.solutions