The auditable call for ideas
The short guide to run challenges and calls for ideas with external submissions — traceable and defensible.
The problem
Running a challenge or a call for ideas with external submissions looks simple — until you have to prove how entries were collected, evaluated and chosen. Shared sheets and generic forms leave no trail: when someone questions a decision, the process doesn’t hold.
Written by the blendX team — 15+ years of corporate innovation, from scouting to governance.
Get the guideWhat’s inside
- 01Privacy and external submissions
How to collect and handle external data and submissions correctly, with a clear trail.
- 02Multiple evaluators and transparency
How to have several people evaluate while keeping every decision traceable and transparent.
- 03The audit trail
What it takes for a call to be traceable end to end and defensible after the fact.
Who it’s for: Corporates running challenges and enablers managing calls (agencies, incubators).







Frequently asked questions
- Is it free?
- Yes. The document is free: leave your details and you’ll receive it by email.
- What format is it?
- Guide + checklist · PDF, 6 pages, ready to read and share internally.
- What happens after I submit?
- You receive the document by email. If you opt in, we’ll occasionally share more method content — no spam, one-click unsubscribe.