Hello Flinders
The software number shouldn't have been changed, it might just be an issue with identifying the software ID, I would suggest following these steps and just resending the alert of the Software ID and this should resolve SBR.GEN.AUTH.008 error code.
- Go to the Payroll menu and choose Single Touch Payroll reporting.
- Click the ATO settings tab.
- Note down your Software ID.
- Notify the ATO you're using MYOB for payroll reporting by either:
- phoning the ATO on 1300 852 232, or
- using Access Manager to notify the ATO of a hosted SBR software service.
Please let me know how you go.