geeklord

Oops I mistook it for "Project" management. For such a certification in Product management you could check out Coursera's Brand management course: https://www.coursera.org/learn/brand

Actually with Project management the case is a bit different. There is a central body called "Project management institute". They have a selected number of certification options that are recognized globally. You can defnitely attend free courses but only PMI can certify you to be certified Project Management Professional.

Start by gathering the best writing samples your team has completed. Identify the most appealing aspects of each document. Review the lists of positive responses for patterns. With enough documents and enough people participating, you’ll arrive at a consensus standard for quality writing: A set of models and specific language that describes exactly what your organization likes about them.