CPM exam - how hard is the written submission and how long does it realistically take?

Common rejection reasons I've heard: missing quantifiable outcomes, examples that are too general and read like a job description, and not showing your personal role versus what the team did. Write "I" a lot, not "we" - the reviewers need to see your individual contribution clearly.

I submitted mine last year and passed without revisions. My advice is to outline the entire submission before you write a single word. ISM's submission guide has a rubric - use it as a checklist and make sure every box is explicitly addressed in your narrative.

The written submission took me about 4 months working consistently - roughly 5-6 hours a week total. The key is mapping each example directly to the specific competency they ask for, not just describing what you did in general terms.

My first draft got sent back because I described a process without showing measurable outcomes. Adding specific numbers - cost savings percentages, cycle time reduction - fixed it on resubmission.

Seven years of experience is a great position for this. You've got enough to pull from that you can be selective about which examples best fit each competency. Don't try to use everything - use the strongest stuff and write it tightly.