Hi Jenni,
Our business has completed the mandatory upgrade, providing all the docs required, and thankfully it was not too complicated as a sole trader. The business has also changed the (now default) setting from ALLOW online invoice payments to NOT ALLOW, and we have also disallowed BPAY payments (seems to be two steps).
Any invoices created prior to upgrade should not have the Online Payments feature available - unless a business had already set that up prior to upgrading. I'm not sure about invoices generated prior to upgrading but emailed after, but the global settings to NOT ALLOW online invoice payments should take care of this issue. And you will still be able to email invoices from MYOB after you upgrade, even with the online payments feature disabled.
This SHOULD have been the end of it, except that our business invoices are generated by a 3rd party software provider "Service M8" and synched back to MYOB. Even though we have disallowed online invoice payments and BPAY, if we email these synched invoices out from MYOB, those options are surreptitiously SWITCHED BACK ON!!
I raised a case with MYOB and they placed the blame on Service M8, who then placed the blame on MYOB (sheesh!!). There is an MYOB API Developer script that has a field for online invoice payments (allow / not allow), which MYOB says Service M8 can use to fix the problem, but Service M8 have washed their hands of responsibility (they claim they CANNOT change that attribute). Who knows...
Service M8 suggested that we do NOT send invoices from MYOB, and send them from Service M8 directly. We can do that, but it is a stupid workaround that should never have been needed.
We've only lost $12.50 in extra fees skimmed by MYOB, but the hours of frustration are are much greater.
Soon I may need to cut ties with MYOB for a different business. It's owned by a trust, and I don't want to contemplate the drama of sorting through the mess of verification for them.
What a mess!
Oh, and if you have upgraded, then turned off all permissions for online invoice payments, but then generate an invoice by copying an old one, those settings are again ignored, and the online payments are surreptitiously allowed again!!
Big fail MYOB.