Account ID in gtag.js URL is invalid or missing
The global site tag snippet loads gtag.js using the following path:
PRODUCT_ACCOUNT_ID is an ID for the product and account (or property) from which the global site tag snippet was generated (or should be associated).
Failing to properly set this ID should not directly affect the data received by your accounts, but may affect future functionality.
Solution: Ensure that the ID in your gtag.js code is correct.
gtag() commands are found without a global snippet
gtag() commands have been detected without a global site tag snippet present.
Without the proper global site tag installed, calls to
gtag() won't work.
Solution: Ensure that the global site tag is properly installed on the page.