You will come across into the following three support levels in your Salesforce journey, as they dictate the amount of expertise required to handle your platform problem:
- Level 1 – Front line basic support
- Level 2 – Advanced level support
- Level 3 – Backend Development
If you are looking for an online course to learn Salesforce, I recommend this Salesforce Course by Intellipaat.
Also, watch this video to understand more: