Suggestion for checking for 0 value in power up before sending it to server

Java script can be used to validate user input before sending values to the server.
The transfer dialog currently checks if you enter in more than 3 decimal places, but does not check for zero values.
This could be done to avoid sending the invalid input to the server and waiting for a response, it would reduce the load on the server and speed up the experience for other users.

Here is an example of how I enter in a zero value

Error log is here