estiger

Has anyone successfully integrated their Marketo account with Lob direct mailing?I set up the webhook and built the letter I hope to send, but the Lob dashboard hasn't accepted the HTML letter. The error code says the Merge variables aren't designated, but they should be defined by the webhook, shou...

I'm new to HTML. I coded my first template in Marketo, and I'm getting an error code I'm not familiar with.Is there a good resource to learn more about HTML error codes? My specific code is "Error: Multiple Container Elements..." Ideally, someone could direct me to an article or database to search t...