If you’re already done setting up your account and creating a container, you may skip this step. If you haven’t, create your account and container name by filling in the corresponding text boxes
Input a container name. Click on the web
A code will pop up, copy the code that begins with “GTM-XXXXX-XX”
Paste it to your google tag manager ID text box
Test it by adding an extension for Chrome called “tag assistant” and enable the extension
Go to your page and verify your Google Tag Manager ID using the tag assistant Chrome extension. You should see that you have successfully added your google tag manager ID
NOTE: The google tag manager id should look similar to “GTM-12345-12. See the image below: