Answer
When contacting the ATO for help regarding machine credentials, they may ask you to provide a software ID (SSID), or ask you for our ABN.
If you are using Lightning Payroll desktop, this does not utilise or require a software ID for Single Touch Payroll. Desktop-based programs instead utilise locally installed machine credentials (please see the following from the ATO's website). In cases such as this, you can inform the ATO that you do not have a software ID since you use a desktop software, and simply need advice on how to install your own machine credential. You can see instructions on how to download a machine credential yourself here.
If using Lightning Payroll online or mobile applications, you will need to register your SSID, along with our ABN in the ATO Access Manager. Please click here to read our FAQ on setting up Single Touch Payroll on the online/mobile versions of the program.