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Description

Good evening, I am using the calendar API in the project in which it works perfectly when creating, editing and deleting the events, the flow of information is correct but when I want to make an invitation to the users it returns the error "Service accounts cannot invite attendees without Domain-Wide Delegation of Authority.", but I have already investigated and made the configurations from my administrator account in the "Domain-Wide Delegation." section, I have already verified the sending object and according to the documentation it is correct.

Code

{
    "result": {
        "error": {
            "errors": [
                {
                    "domain": "calendar",
                    "reason": "forbiddenForServiceAccounts",
                    "message": "Service accounts cannot invite attendees without Domain-Wide Delegation of Authority."
                }
            ],
            "code": 403,
            "message": "Service accounts cannot invite attendees without Domain-Wide Delegation of Authority."
        }
    },
    "body": "{\n \"error\": {\n  \"errors\": [\n   {\n    \"domain\": \"calendar\",\n    \"reason\": \"forbiddenForServiceAccounts\",\n    \"message\": \"Service accounts cannot invite attendees without Domain-Wide Delegation of Authority.\"\n   }\n  ],\n  \"code\": 403,\n  \"message\": \"Service accounts cannot invite attendees without Domain-Wide Delegation of Authority.\"\n }\n}\n",
    "headers": {
        "cache-control": "no-cache, no-store, max-age=0, must-revalidate",
        "content-encoding": "gzip",
        "content-length": "187",
        "content-type": "application/json; charset=UTF-8",
        "date": "Sat, 05 Apr 2025 01:06:57 GMT",
        "expires": "Mon, 01 Jan 1990 00:00:00 GMT",
        "pragma": "no-cache",
        "server": "ESF",
        "vary": "Origin, X-Origin, Referer"
    },
    "status": 403,
    "statusText": null
}

Output

Steps

Event creation send object successfully without invitation { "summary": "31 Mirador, Chimalhuacán, Estado de México, México, 56343", "location": "31 Mirador, Chimalhuacán, Estado de México, México, 56343", "description": "\nNew Project\n \nlocation: 31 Mirador, Chimalhuacán, Estado de México, México, 56343\n \nName contractor and/or architect: Angelopolis\n \nPhone Number contractor and/or architect:\n+5 (555) 556 - 666\n \nRequested Project Plan:\nSite Plan\nBathrooms\n \nSelected Software:\nChief Architect\n \nNotes:\n<font face="Arial" size="2">z</font>\n", "start": { "dateTime": "2025-04-18T16:00:00.000Z", "timeZone": "America/Mexico_City" }, "end": { "dateTime": "2025-04-18T19:00:00.000Z", "timeZone": "America/Mexico_City" }, "attendees": [] }

event creation attempt sending object unsuccessful { "summary": "31 Mirador, Chimalhuacán, Estado de México, México, 56343", "location": "31 Mirador, Chimalhuacán, Estado de México, México, 56343", "description": "\nNew Project\n \nlocation: 31 Mirador, Chimalhuacán, Estado de México, México, 56343\n \nName contractor and/or architect: Angelopolis\n \nPhone Number contractor and/or architect:\n+5 (555) 556 - 666\n \nRequested Project Plan:\nSite Plan\nBathrooms\n \nSelected Software:\nChief Architect\n \nNotes:\n<font face="Arial" size="2">z</font>\n", "start": { "dateTime": "2025-04-18T16:00:00.000Z", "timeZone": "America/Mexico_City" }, "end": { "dateTime": "2025-04-18T19:00:00.000Z", "timeZone": "America/Mexico_City" }, "attendees": [ { "email": "testpruebas584@gmail.com" } ] }