easycrit can be configured to send challenges to your suppliers. Then you can invite them, using to easycrit, to participate and collaborate, receiving from them ideas aligned with your objectives.
You can configure an internal voting process with easycrit to select the best ideas from suppliers on a particular topic. They can see which ideas are adopted or not and why.
Successful companies collect ideas outside of the company, in a controlled process, and allow employees to view and add value during the development process.