invalid_client 401 error when attempting to connect to Google
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I just completed the setup for GMail and added the Client ID and Secret. No extra spaces anywhere. I checked. Receiving 401 errors for invalid_client like this inside of WP SMTP:
Email Source: WooCommerce
Mailer: Google / Gmail
{
"error": {
"code": 401,
"message": "Request is missing required authentication credential. Expected OAuth 2 access token, login cookie or other valid authentication credential. See https://developers.google.com/identity/sign-in/web/devconsole-project.",
"errors": [
{
"message": "Login Required.",
"domain": "global",
"reason": "required",
"location": "Authorization",
"locationType": "header"
}
],
"status": "UNAUTHENTICATED",
"details": [
{
"@type": "type.googleapis.com/google.rpc.ErrorInfo",
"reason": "CREDENTIALS_MISSING",
"domain": "googleapis.com",
"metadata": {
"method": "caribou.api.proto.MailboxService.SendMessage",
"service": "gmail.googleapis.com"
}
}
]
}
}And in Google itself I get this:
Error 401: invalid _client
Request details: flowName=GeneralOAuthFlowThe page I need help with: [log in to see the link]
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