If you had the idea and you convinced others of the idea, that is a good story in of itself, because it highlights both very important skills, ability to brainstorm solutions and ability to persuade and sell others on this solution.

So you say: "I had this idea A to solve problem B, but not everyone was initially onboard, so I had to do C to convince others. I was able to convince everyone and I led the project to fruition with D results.

If you were in a leading role, it will be more impressive the more people and the higher levels you had to convince or lead.