We already know that our customers are plugged into a variety of channels. Email might be the best bet for reaching some, while social is the right route to others. So if we understand that marketing requires a multi-channel approach today, why isn't this strategy being utilized more? It's because there are some big challenges involved. A recent article from eMarketer notes findings from two studies on multi-channel marketing where senior/executive marketers shared their struggles. A few of the top ones are a lack of time and resources to develop multi-channel campaigns, limited understanding in how to develop them and the inability to analyze results across all channels. Other concerns include not having the appropriate budget and staffing needed. Multi-channel marketing has become a must in reaching more customers, but marketers need to really invest in the idea and find ways to fine-tune the process.