# Subject line & Preheader Arguably one of the most important aspects of email marketing is writing a banger of a subject line and preheader to grab readers attention to even open your email in the first place. ### Editor In the editor users are able to insert both Subject line and preheader for their email. The editor will give indications if the suggested amount of characters have been reached.\ More advanced ESP's are able to pick up one or both of these fields at export, saving you time to have to do it again.

### How to insert Subject line & Preheader into HTML For some ESP's it's not part of their export options and thus it needs to be either manually inserted when sending out the email, and some of the fetch the information straight from the HTML. In these cases we've made it possible to insert those fields from the editor, so you don't have to create your own.\ \ **Subject line** ```html {{subjectline}} ``` **Preheader** {% code overflow="wrap" %} ```html ``` {% endcode %} --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://documentation.alpaco.email/how-to/subject-line-and-preheader.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.