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Dynamic campaign API to add a record responds 400 Invalid customer provided, customer, is wrong or in DNC list

Updated: 05/21/2025

Question

Why does the Dynamic campaign API to add a record to a campaign respond with a 400 status code and message Invalid customer provided, customer, is wrong or in DNC list when attempting to add a record to a campaign?
Example Response body
[
  {
    "customer-id": "10000001",
    "http-status": "400",
    "message": "Invalid customer provided, customer, is wrong or in DNC list."
  }
]

Applies To

  • 8x8 Contact Centre
  • Dynamic campaign API

Answer

  • This can be because the record's telephone number is on a Do Not Call list that the campaign is configured to check.
    • For example, in Configuration Manager, Campaigns, Search/Filter, the Check Do Not Call lists option is enabled, and the customer's telephone number is registered on the selected list.
  • This can also occur if the Outbound Setup doesn't have a Voice field configured.
    • This can be found in Configuration Manager, Outbound Setup, CRM Objects.
    •  

Additional Information

  • The Check Do Not Call lists option can not be modified for a campaign once it has been started; a new campaign would need to be created.
  • Check Do Not Call lists options:
    • UK - Telephone Preference Service (TPS)
    • UK - Corporate Telephone Preference Service (CTPS)
  • The Telephone Preference Service has a page where you can check if a number is registered with them
  • Outbound Setup Documentation