Don’t you just love it when you change some config option or switch to another branch or something similar and all of a sudden, a warning message pops up in Admin, saying:
One or more indexers are invalid. Make sure your Magento cron job is running.
Well, if you “love” it as much as I do, I’m going to show you how to address the particular indexer(s) without any hassle of knowing which one caused the warning to appear in the first place. Continue reading