API call returning 400 bad request.

[GopikaP]

Hi everyone, I am getting 400 Bad request while adding one more field as parameter in the request body. If I remove that specific field from the request body, the record will get inserted. That field is a custom field (is a string field) in incident table, and it is configured as read-only from dictionary. 

This is the error I am getting - 

{
  "error": {
    "message": "Error",
    "detail": "Wrong parameters: 'u_variable_name'. Allowed parameters are: additional_comments,assigned_to,assignment_group,business_service,caller,category,company,cmdb_ci,description,priority,short_description,state,ticket_type,work_notes,sub_category,correlation_id,correlation_display,impact,urgency"
  },
  "status": "failure"
}

 Thanks

[Dr Atul G- LNG · Accepted solution]

@GopikaP 

I’m wondering how you're passing this in the API. It seems like there might be a syntax issue, or is this variable mapped in another instance?

[GopikaP]

Hi @Ankur Bawiskar , Sorry for taking up your time. The issue was on the scripted REST API side, and I have fixed it. I appreciate your help!