The selected action is not allowed with Razorpay recurring billing.

The selected action is not allowed with Razorpay recurring billing.

I am trying to create a new subscription, it can be seen on Zoho but response says : The selected action is not allowed with Razorpay recurring billing. 
This was working a day ago. Now it is a 400 bad request.
{
  "customer": {
    "company_name": "new comp",
    "display_name": "nam_6757",
    "first_name": "nam_6757",
    "email": " uyuyudd40985fd@gmail.com"
  },
  "plan": {
    "plan_code": "B01"
  }
}

Can anyone help me with this?