Here is an explanation of some of the most common errors you'll see when testing your API integration:

Bad Syntax means the request body is malformed or one of the required parameters for campaign creation is missing. Other common errors are missing characters or incorrect capitalization of attributes in the request body.

Invalid Brand means the brand code in your request is not valid, or the price in cents in your request is not compatible with the brand code. Brand codes and supported denominations for each environment are available from the /brands endpoint.

Invalid ID means the request ID is a duplicate or your request did not contain a request ID. The request ID is idempotent and each unique value will only be accepted once.

No Contacts Found means the request doesn't contain any valid contacts. This can happen if the only contact in the request is undeliverable or unsubscribed.
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Refer to our API docs for more detailed instructions.