What is your opinion on the importance of using more than one digital marketing channel in your strategy?

Usage and selecting the digital channels are depends on the target audience and market segmentation so the selection must go with the best channels which achieve the marketing objectives 

combined campaigns are gaining importance because consumers connect with more types of media than ever.A combined campaign cements a campaign into the audience members' mind because they are seeing it in different formats at different times.Different demographics relate to different mediums depending on what they use frequently,