Zoho API Deal Creation and Pipeline

Zoho API Deal Creation and Pipeline

I want to sync my zoho crm and backend with eachtoher, I can receive webhooks from crm and sync from it but when I try to sync to crm , I get this error for Deals module Zoho error: {
  data: [
    {
      code: 'MANDATORY_NOT_FOUND',
      details: [Object],
      message: 'required field not found',
      status: 'error'
    }
  ]
}
Details contains a message saying Pipeline field is missing ,
I could not fetch my pipelines with the endpoint 
it raises an error saying oauth scope 
 data: {
      code: 'OAUTH_SCOPE_MISMATCH',
      details: {},
      message: 'invalid oauth scope to access this URL',
      status: 'error'
    }
How can I enable my access tokens to access Pipelines ?