Azure Portal provides the ability to set the number of instances an app can scale out to. This is set by the Maximum Burst option in the Scale out tab: Picture link since I can't post pictures yet
The maximum number of instances can be further be limited by the Maximum Scale Out Limit. So, the question is, why and when should I put different values in those and what is the actual difference between those settings?
They all represent the maximum number of instances, but
Maximum Burstrepresents the maximum number of instances that theplancan scale out, andMaximum Scale Out Limitrepresents the maximum number of instances that the currentFunction Appcan scale out.If you set the maximum number of instances of the
plan, then the maximum number of instances of yourFunction Appcannot exceed the maximum number of instances of theplan.