The company has 'plugged into' the international market. [=the company has become connected to the international market; the company has begun to do business in the international market]
His friends are 'plugged into' the city's music scene. [=his friends are actively involved in the city's music scene]
The computer program will take data from these sources and automatically 'plug' it 'into' the equation.
(..) I'm handing you the deal of the century on a fucking platter! What do I get out of it? Easy.. I got a million a month negative carrier I got bosses trying to pull the plug, because they're thinking I'm out of my fucking mind Alright? We make this trade, those problems aren't so big anymore (..)2015 The Big Short