UX for encouraging users to report data issues

Our product uses large amounts of third party data to sell products to our customers. Sometimes this data is really well structured, clean, and accurate. Other times, it's not so much. Images can be missing, descriptions can have typos (or be missing) other information can be wrong or out of date. Primarily, this service is consumed on a mobile app.

We were hoping to crowdsource the prioritization of fixing this bad data by asking our users to request we fix the data.

Have you seen any good examples of this? The only thing that comes to mind is google maps. Anything more mobile focused?