Gmail Setup error

Hey,

I tried to set up with Gmail and followed all the instructions until the end.
But at the end I got “There was a problem while sending the test email.” message, if I try to send a test mail.

Error Log:

Versions:
WordPress: 6.1
WordPress MS: No
PHP: 7.4.33
WP Mail SMTP: 3.6.1

Params:
Mailer: gmail
Constants: No
Client ID/Secret: Yes
Auth Code: Yes
Access Token: Yes

Server:
OpenSSL: OpenSSL 1.1.1p  21 Jun 2022
PHP.allow_url_fopen: Yes
PHP.stream_socket_client(): Yes
PHP.fsockopen(): Yes
PHP.curl_version(): 7.71.0
Apache.mod_security: No

Debug:
Email Source: WP Mail SMTP
Mailer: Google / Gmail
{
  "error": {
    "code": 403,
    "message": "Gmail API has not been used in project 1065434684700 before or it is disabled. Enable it by visiting https://console.developers.google.com/apis/api/gmail.googleapis.com/overview?project=1065434684700 then retry. If you enabled this API recently, wait a few minutes for the action to propagate to our systems and retry.",
    "errors": [
      {
        "message": "Gmail API has not been used in project 1065434684700 before or it is disabled. Enable it by visiting https://console.developers.google.com/apis/api/gmail.googleapis.com/overview?project=1065434684700 then retry. If you enabled this API recently, wait a few minutes for the action to propagate to our systems and retry.",
        "domain": "usageLimits",
        "reason": "accessNotConfigured",
        "extendedHelp": "https://console.developers.google.com"
      }
    ],
    "status": "PERMISSION_DENIED",
    "details": [
      {
        "@type": "type.googleapis.com/google.rpc.Help",
        "links": [
          {
            "description": "Google developers console API activation",
            "url": "https://console.developers.google.com/apis/api/gmail.googleapis.com/overview?project=1065434684700"
          }
        ]
      },
      {
        "@type": "type.googleapis.com/google.rpc.ErrorInfo",
        "reason": "SERVICE_DISABLED",
        "domain": "googleapis.com",
        "metadata": {
          "service": "gmail.googleapis.com",
          "consumer": "projects/1065434684700"
        }
      }
    ]
  }
}
Email Source: WP Mail SMTP
Mailer: Google / Gmail
{
  "error": {
    "code": 403,
    "message": "Gmail API has not been used in project 1065434684700 before or it is disabled. Enable it by visiting https://console.developers.google.com/apis/api/gmail.googleapis.com/overview?project=1065434684700 then retry. If you enabled this API recently, wait a few minutes for the action to propagate to our systems and retry.",
    "errors": [
      {
        "message": "Gmail API has not been used in project 1065434684700 before or it is disabled. Enable it by visiting https://console.developers.google.com/apis/api/gmail.googleapis.com/overview?project=1065434684700 then retry. If you enabled this API recently, wait a few minutes for the action to propagate to our systems and retry.",
        "domain": "usageLimits",
        "reason": "accessNotConfigured",
        "extendedHelp": "https://console.developers.google.com"
      }
    ],
    "status": "PERMISSION_DENIED",
    "details": [
      {
        "@type": "type.googleapis.com/google.rpc.Help",
        "links": [
          {
            "description": "Google developers console API activation",
            "url": "https://console.developers.google.com/apis/api/gmail.googleapis.com/overview?project=1065434684700"
          }
        ]
      },
      {
        "@type": "type.googleapis.com/google.rpc.ErrorInfo",
        "reason": "SERVICE_DISABLED",
        "domain": "googleapis.com",
        "metadata": {
          "consumer": "projects/1065434684700",
          "service": "gmail.googleapis.com"
        }
      }
    ]
  }
}

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