The following sentence doesn't sound right to me, but I'm not sure whether it's actually wrong:

> 
> If neither approval nor a purchase order is required, you can quickly
>  create invoices **at the same time AS** you create records for the
>  vendors.
> 
> 
> 

It seems to me it should say:

> 
> ...you can quickly create invoices **at the same time THAT** you create
>  records for the vendors.
> 
> 
>