What do you mean by SOM term?

Serviceable Obtainable Market (SOM) is the portion of your Serviceable Available Market (SAM) that you can reasonably capture in the short term. This is the smallest of the three market scales (TAM, SOM, SAM).The Serviceable Obtainable Market (SOM) is an estimate of the portion of revenue within a specific product segment that a company is able to capture. Another way of looking at it is as an estimate of the market share for a particular product that a company can garner.