Data in VF01

Hello,

I have a question about the data we see in creating VF01.

I thought that some data such as customer nb, price, etc come from Sales Order, and data for material and quantity, it comes from Delivery Document.

If, for example, you created VF01, but you were not able to create accounting doc because the setting in customer master was incorrect.

So, you cancel that billing doc and modify customer master data.

I thought that once you cancel the billing doc and recreate it, the latest information is referred from corresponding master data.

At what stage of data is carried out to VF01 and from where??

Regards,