Ongage Entity IDs

Table of Contents:

Email Message ID

  • Email messages are the contents (typically HTML email messages) you send to the contacts in your list. 
  • Every email message has a unique ID that you can find in the ID column on the Content → Email Messages page of the list.
  • It's helpful to use this unique ID when communicating with support.

Campaign ID aka CID 

  • The CID is a unique ID associated with each campaign in the Ongage platform.
  • You can find the CID in the Campaigns → Campaigns Overview page, under the CID column (the CID can found on other screens as well such as the Analytics → Aggregate report).
  • It's helpful to use this unique ID when communicating with support.

ESP Connection ID aka ECID

  • ECID (short for ESP Connection ID): is the unique number ID given to each ESP connection in your Vendor Settings → My Connections dashboard
  • It's helpful to use this unique ID when communicating with support. 
  • You'll also need this ECID if you're doing a Transactional mailing via the API.

ESP ID 

  • The ESP ID (esp_id) is an internal unique Ongage ID that Ongage has assigned to each SMTP / ESP / SMS vendor.
  • You can find ESP ID by going to Vendors Settings → ESP/SMTP Vendors, and clicking on the name of anyone of the vendors there, e.g.,


  • Typically the ESP ID has no usage (except maybe in some unique API use-case), and is just an internal ID Ongage uses to uniquely identify different vendors.
    • It does appear in the Contact Activity Report (see Analytics), though in the future it will be replaced with the name of the vendor instead of the ID.

List ID

  • The List ID is the ID that is associated with each list in your database.

Contact ID

  • The Contact ID is the unique ID that is associated with each contact you have in your list.

Note: Once you delete the email address and add the same email address again, the contact ID for that email address changes.

Import ID

  • Import ID is the unique ID for the CSV Imports you do to Add/Change Status of contacts. For more details about Import ID, please refer the documentation here.

Export ID

  • Export ID is the unique ID for the CSV imports.

Report ID

  • Report ID is associated with the reports that you generate. It is associated with the Contact Manager, Contact Activity Report and Custom Aggregate Report.

Template ID

  • Template ID is the ID that is associated with each templates in the template library.

Link ID

  • Link ID is the unique ID Ongage creates for each link you add for your campaigns. You can find the Link Ids in Aggregate Report and Combined Exported Contact Activity Report.