Hi all,

I have a problem trying to refresh the access token (OAuth2.0). I'm using 
the googleads-php-lib and everything is fine with the authorization 
process, request for tokens and I get access to the AdWords API.

The problem appears when I try to refresh the access token after about an 
hour. If I try to use:
$handler = $user->GetOAuth2Handler();
$new = $handler->RefreshAccessToken( $user->GetOAuth2Info() );

All I get is "An error has occured: { "error" : "invalid_grant" }" 

I have checked the $user->GetOAuth2Info() data and it is the correct data 
(client_id, client_secret, refresh_token, timestamp, expires_in). Have 
anyone any ideea why do I get that error instead of the refreshed 
access_token?

thanks,
Nelu

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