Open the Alexa app on your phone
Tap More
Tap Settings
Tap Music & Podcasts
Tap Link New Service
Select Spotify
Tap Enable to Use
Sign in to your Spotify account
Tap Agree to connect Spotify with Alexa
Tap Close when linking is complete
Tap Default Services if you want Spotify as the default music service
Select Spotify for Default Music Library
Select Spotify for Default Podcast Service
Say, “Alexa, play music on Spotify”