1004: Invalid message content

HTTP status: 400.

The message content or parts array is invalid. This is an HTTP 400 error indicating the message you are trying to send has an invalid structure.

• Ensure the parts array contains valid text, media, or link parts
• A link part must be the only part in the message – it cannot be combined with other parts

• Sending messages
• Attachments
• API reference: Chats