Before proceeding with the Delete action for a record in the Billing module, it is important to know that deletion is permanent and it will not be possible to recover the information afterwards.
To be able to delete, you must have the Delete right for the Billing module (Admin Interface > tab Managers/Roles > account/role record > section Modules & Configuration keys > check the checkbox at the intersection of the row Billing Module and the column Delete) See tutorial Create and configure a manager account
To avoid accidental data loss, we prevent the deletion of a record containing linked data, so it is necessary to follow a specific order to successfully delete a record.
Hierarchy to Follow:
Start by deleting the invoices
Then you can delete the order
1 - Delete the Invoice
Billing > Invoices view
2 - Delete the Order
Billing > Orders view