A 'Generate Recurring' button is displayed on the invoice.
Recurring Document, Recurring Type and Scheduled action of this
particular invoice is automatically created.
Number of documents - The number of times the document
should be recurred.
Interval Unit - The interval when the recurring should
occur.
Start Recurring - Activates the generated recurring.
Save - Creates the recurring but doesn't activates it.
Recurring - Shows the generated recurring.
Document - Links the invoices that are generated by the
recurring of that particular invoice.
Invoices that are generated through recurring are linked here.
Recurring Document is automatically created.
Recurring Type is automatically created
Cron job is automatically created