ICO (Initial Coin Offering) has proved to be a cost-effective method of raising funds for startups. While formulating the offering requires a lot of investment in time and money, marketing has become easier with the abundance of tools and channels. 

Some of the Main Challenges for Ico Marketing Are 

• Lack of Adequate Coverage
• Absence of Effective Payment Solutions
• Targeting the Right Audience
• The Pressure of Competition
• Lack of Transparency
• The Huge Expenditure on Advertising
•  Lack of Solid Tokens
• Not Focussing on Business Goals
• Tightening of Regulations
• Lack of Sufficient Manpower
• Incomplete Whitepaper

Lets follow the link to know more with brief - https://steemit.com/icomarketing/@blockchain-baf/unearthing-the-challenges-involved-in-ico-marketing