Why cant i put music on icloud from my mobile pls

Hi cinzia209,

Welcome to the Apple Community.

Apple support have an article online (link below) that may help you:

You might want to scroll down to change your Music settings for iCloud:

Manage Apple ID and iCloud settings on iPhone:

https://support.apple.com/en-au/guide/iphone/iph76e54c61e/ios

Hope this helps you :-)