Apart from the manual invoice creation, the subscription mode is a pain in the neck and also faced by all the users of Plutio.

Questions:
1) Do you have subscription mode like Plutio that can select auto generation in terms of months, quarterly or year?
2) Once the subscription invoice is generated, can modification be done like cancelling the invoice or changing the billing value?
3) Can the invoice numbers once generated be change? Deleted then re-generate again with the same number sometimes due to customers requesting new features then needed to add-on with the new price?

Basically, what I need is an invoice generation tool that can be as flexible as possible. Able to delete invoice when auto generated, change the invoice billing numbers, set the subscription billing date.

Thank you.

Regards

Richard Cheah