How does the Custom Counter display my data?
The Custom Counter has two options in order to display a number : the JSON URL and PUSH NUMBER. These options are available on the "Settings" of the Custom Counter :
If you choose the JSON URL option, then you can check the following article to get an idea about how to proceed: How does the Custom Counter get access to the data I want to display?
If you choose the PUSH NUMBER option the Counter will update whenever you enter a new number and click on "Save". Indeed it is a manual option and you can check this article to know the steps to follow: How does the push number work?
Also, you can change the way your Counter gets access to the data whenever you want! You only have to click on "Options".