In order to get Invoices back into Innovent Integration S/W-
1. In ConnectWise, under Finance -> Accounting Interface -> Open Batches
2. Select the batch with the invoices that you want to revert (Name format - YYYYMMDDhourminsec)
3. Actions tab -> DELETE BATCHES option and NOT close batches
This would get all the invoices sent to MYOB in that batch and display them again in CW and MYOB Integration S/W.
Make sure to delete these invoices from MYOB also to avoid creating duplicate records in the system.