What does Australian visa grant id mean?

The string of numbers in the upper right corner of the visa page is the Visa Grant Number (visa approval number). Looking at the picture, the Visa Number is this:

The approval letter or label for each Australian visa There will be a series of visa conditions on the visa approval letter. Generally, we will see "Visa Conditions" on the visa approval letter, which means that we must comply with these visa conditions while holding this visa.