Send campaigns via the Campaigns API
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Use our Campaigns API to send your large-scale direct mail campaign sends more programmatically.
When creating campaigns, you’ll interact with 3 main models: campaigns, creatives, and uploads.
The campaigns model is used to set up high-level information about your campaign
The creatives model is used for uploading artwork and artwork settings for your campaign
The uploads model is used to build your audience and configure any recipient-level details for your campaign
Follow the steps below to create your first campaign in the API.
Endpoint: POST api.lob.com/v1/campaigns
Documentation:
First, create your campaign. At a minimum, your campaign needs a name
and a schedule_type
and a use_type
if one has not been declared at the account level. It is highly recommended that a cancel_window_campaign_minutes
is provided given it will allow you to cancel the campaign within the specified window if needed.
The next step is to create your creative object that will be associated with the campaign. You can only associate a single creative with a campaign. You are required to add a campaign_id
, resource_type
, and any requirements for your selected resource_type
. This payload is subject to change depending on your form factor. See examples below.
If using optionalAddressColumnMapping
, all fields must be specified (which means unused fields must be declared with a null
value). If you're using an HTML template, double check that you have provided all keys and values for mergeVariableColumnMapping
, if not all merge variables are mapped, your campaign will not be executable when it comes time to send.
After creating your upload object, you can now upload your file as a byte stream (binary file).
Finally, you can execute your campaign! To see the status of your mail pieces as they are created, use the GET api.lob.com/v1/uploads/{{upload_id}}
endpoint.
First, let us know that you would like to create a failure export. Your response will include an export ID, which will be used to retrieve the export URL in the next step.
You can then retrieve the S3 URL of the export from the GET
response above. Your export will include row-level details on why each record failed.
Endpoint: POST api.lob.com/v1/creatives
Documentation:
Note: the details
section has additional optional parameters,
Endpoint: POST api.lob.com/v1/uploads
Documentation:
Uploading your audience data file is the next step. Step 3 can be done prior to Step 2 as well. For more information on how to best structure your upload for Steps 3 and 4, visit our .
Endpoint: POST api.lob.com/v1/uploads/{{upload_id}}/file
Documentation:
Endpoint: POST api.lob.com/v1/campaigns/{{campaign_id}}/send
Documentation:
Endpoint: POST api.lob.com/v1/uploads/{{upload_id}}/exports
Documentation:
Endpoint: GET api.lob.com/v1/uploads/{{upload_id}}/exports/{{export_id}}
Documentation:
Endpoint: DELETE api.lob.com/v1/campaigns
Documentation:
As long as your campaign cancellation window has not passed, you can your campaign using our DELETE
route on the campaigns endpoint.
And that's it! If you have any questions, feel free to reach out to your Customer Success Manager, or to .