Add address to an account return success but not reflecting in store front

We used Fynd Platform Add address to an account API to add address for an customer account. We got success response from Add address to an account API but it will not show in store front. and document itself all parameters shows optional including userid also. how it will get mapped to customer account. kindly let us know.

Document : Add address to an account | Fynd Partners Help Center (nmz3.de)

Request :
{
“name”: “Venkatesh Selvam”,
“area”: “Arumbakkam”,
“phone”: “9080888066”,
“address”: “Q15, maraimalai Adigal, St,”,
“city”: “Chennai”,
“state”: “Tamilnadu”,
“area_code”: “600106”,
“is_default_address”:true,
“user_id”:“64def8ca32a2d8ecf888015d”
}

Response :
{
“id”: “64f9c6f5324b796dd254ff54”,
“address_id”: 830,
“is_default_address”: true,
“success”: true
}

This method is not giving any error because API call is getting successful and to Add the address in particular account here, User session and Cookies needs and to be created.

@Devendra_Kumari_Dhay Shared the sample code to create session and cookie with @venkateshselvam . It’s resolved now.