Hi REITOW2002,
Thanks for posting this concern in the forum.
I understand how there are different use case scenarios for invoicing. Unfortunately, if an invoice is already created, we are unable to change the customer it's connected to. The only option is to delete and recreate the whole invoice.
As for receiving payments before the invoice is created, this feature is only available in the desktop version of AccountRight. For the browser version or MYOB Business, this is yet to be implemented. I recommend posting this on the MYOB Business Ideas Exchange board. This will serve as a suggestion to the development team.
In the meantime, feel free to let us know how we could help you further.
Thanks,
Genreve