Can anyone please help me with diagnosing why the API endpoint is returning
a 404 error despite proper configuration?
So far, I've tried:
- Verifying correct project configuration
- Confirmed API is enabled
- Recreated OAuth credentials
- Tried testing with simple GAQL query to fetch campaign data
My problem:
Every API call results in a 404 (Not Found) error
Tested multiple API versions (v14, v15, v16, v17, v18 and v19)
API is confirmed as enabled in Google Cloud Console
OAuth authentication completes successfully
My developer token is valid (Basic)
Customer ID is correctly formatted (no hyphens)
I have a manager account (correctly formatted too)
I added my script below, with auth. codes redacted. I am not a programmer
and have been seeking help to get this script to work. I'm at a point where
I can't scream "HELP!" loud enough...
// Account information
const MANAGER_ID = '000000000'; // Manager Account ID
const CUSTOMER_ID = '000000000'; // Customer ID (without hyphens)
const DEVELOPER_TOKEN = '000000000'; // Your developer token
function testGoogleAdsApiConnection() {
// Simple GAQL query to fetch one campaign
const query = `
SELECT
campaign.id,
campaign.name
FROM campaign
LIMIT 1
`;
try {
const url =
`https://googleads.googleapis.com/v19/customers/${CUSTOMER_ID}:search`;
const response = UrlFetchApp.fetch(url, {
method: 'post',
headers: {
'developer-token': DEVELOPER_TOKEN,
'login-customer-id': MANAGER_ID,
'Content-Type': 'application/json',
'Authorization': 'Bearer ' + ScriptApp.getOAuthToken()
},
payload: JSON.stringify({
query: query
}),
muteHttpExceptions: true
});
// Log the response
Logger.log('Response Code: ' + response.getResponseCode());
Logger.log('Response Content: ' + response.getContentText());
} catch (e) {
Logger.log('Error: ' + e.toString());
}
}
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