What Does Support Level Mean?
Support level is the extent of technical assistance provided for an IT software product to its customers. Support is normally divided into up to four levels: level/tier 1, level/tier 2, level/tier 3 and level/tier 4. The support level is based on the complexity of support provided.
Techopedia Explains Support Level
Technical support includes services that provide assistance for any technology product, ranging from televisions, mobile phones and electronic devices to software products and mechanical goods.