Discussions

Good morning! I've created a shipment ESUS10155143, using sand token, and I'm trying to test label printing in order to connect it with my app. However, I am getting an error below:
{
"error": {
"code": "invalid_content",
"details": ,
"message": "The request body content is not valid.",
"request_id": "7184c57641e089a516a2b5d61f2939e9",
"type": "invalid_request_error"
}
}
So, what am I doing wrong or how can I test labels printing without spending money with prod token? Thanks.