Sample Request:

curl --location 'https://partner.gupshup.io/partner/app/{{APP_ID}}/username' \
--header 'Authorization: {{PARTNER_APP_TOKEN}}' \
--header 'Content-Type: application/x-www-form-urlencoded' \
--data-urlencode 'username=<USERNAME>' \
--data-urlencode 'transfer_action=none'

Sample Response:

{
  "status": "reserved"
}