Manual scaling is a feature that is available starting from the basic tier—it is not available for free or shared ones. Depending on the actual tier chosen, there will be a different amount of instances that can be used for your App Service.
Here you can find how things look like for the B2 tier:
In the preceding configuration, the maximum number of instances available is set to three. However, if I scale up to the standard tier the result is as follows:
Things look quite different—two features have changed:
- I can set the ...