I got some issue with sending bitcoins

[AlexanderKozhevin]

I'm working on a testnet.
Tried to run following command:

wallet -h http://35.202.224.227:3232/bws/api send mmPepE3AR7DE6YGQfksGrGDj6rQhkAqF9L 15000

But got an error:

[Error: Invalid unit]

I tried few formats but none of them works.
What am I missing?

[isocolsky]

try using 15000sat for satoshi, 15000bit for bits.

[AlexanderKozhevin]

@isocolsky
I tried

wallet -h http://35.202.224.227:3232/bws/api send mmPepE3AR7DE6YGQfksGrGDj6rQhkAqF9L 15000bit

And

wallet -h http://35.202.224.227:3232/bws/api send mmPepE3AR7DE6YGQfksGrGDj6rQhkAqF9L 15000sat

And with the spacing between them. The error is the same.