SD Self billing scenario
I have gone through the many threads related to Self billing which made me bit confused. So kindly clarify my few points.
1. I am explaining here my understanding, Self-billing means customer send an invoice to vendor and vendor starts creating sales order, delivery and invoice, then compare the invoice (customer sent) with actual invoice (created by vendor), there will be credit memo or debit memo if there are difference in invoices.
Please confirm, whether the following scenario is also exist in the industry, vendor will create sales order delivery and invoice, then create the self billing by customer, compare the both invoices and if there are difference, will go for debit memo or credit memo
2 Can we do Self billing without IDOC process which means that can we able run complete self billing demo scenario without help of IDOC processing, which means customer self billing invoice can be generated in the same system or is there any alternative to run the self billing without IDOC process
3 Please clarify that how system will compare invoices each other, after that create a either debit memo or credit memo, please help me how to run VSB1 and how these invoice comparison will be taken place?
4 Please let me know any other important points to taken care for self billing scenario