I got the SHA-1 fingerprint from using the keytool for my application on my key that I sign the application with when I upload it to the play store. 

But when I open the app on my phone for testing it says it is not the right key. ANy ideas what I could be doing wrong?

Not sure what more information i can give without giving security info for my app, so if you can help give me anymore information that I can not think of please let me help you help me.