What are the most effective motivational tips for marketing job?

Its depends upon the level of hierarchy.
At Executive level monthly Incentives on Targets are best to get the better Productivity.
As well as certifications also give the good Impact.
At Higher level Profit Sharing is the best to motivate them.

Here are some effective motivational tips for marketing jobs:   a)      Motivated presenters: who can adjust on the spot to meet the audience’s needs, engage them and move them to action with high engagement presentations that do not rely on technical crutches such as PowerPoint;   b)      Motivated leaders :who can successfully leverage executive coaching feedback, communicate effectively and nurture other leaders for career and organizational growth;   c)      Motivated networkers: perfecting your pitch, increasing your sphere of influence and building more mutually-beneficial relationships so they’ll be there when you need them;   d)      Motivated employees: who can change attitudes and behaviors by engaging the hearts, minds and passions of themselves and their colleagues.
   

Profit sharing on marketing target achieved and bonuses.

Increase the proportion of the bonus and motivation through certificates

Decentralise the power and minimise the control over marketers and provide incentitives based on monthly target will be better option. 

The companies should not follow both control & incentitives based on target together. Because this combination may demotivate the employees.