Solved! Go to Solution.
This is usually a feature reserved for those in the Rockstar Program, so sadly it's likely not an option until you join.
It's currently rolling out as a feature for all users.
I replied to your other post about the rollout process.
When this feature becomes available to you, you will be able to edit the playlist image and descripton in the desktop app. These changes will show up in the mobile apps, but but ability to edit them in the mobile apps will be coming at a later date.
Hey there you, Yeah, you! 😁 Welcome - we're glad you joined the Spotify Community! While you here, let's have a fun game…