Hi, While getting access token we are getting below error response, can you please check this?
Below are api details, which I called
Url : https://api.tiki.vn/sc/oauth2/token
Method : POST
Payload :

{
"grant_type": "authorization_code",
"code": "zBR6os_PDyTwdV8U-VgG8HPNeK79MqyRuBvrxzsoNYQ.6955gq7PiQ8ejf_************",
"client_id": "031363021********",
"redirect_uri": "https://tikilisting.sellinall.com/services/settings/complete"
}

Headers :

Authorization:Basic MDMxMzYzMDIxMzA1MzYxNDphNjdQNGVMejZNc3************
Content-Type:application/x-www-form-urlencoded
Accept:application/json

Response :

{
"error": "invalid_request",
"error_description": "The request is missing a required parameter, includes an invalid parameter value, includes a parameter more than once, or is otherwise malformed",
"error_hint": "Request parameter \"grant_type\"\" is missing",
"status_code": 400
}