🚧
Messages edited through the API will not show updates in the UI preview window.
When a message is edited through the API, the preview window and email builder will not show the updated contents, and will save over whatever updates were made with the API with what is shown in the email editor.
To preview a message that was updated with the API, select "Test And Preview" in the campaign builder window, then select your preview option:

{
	"message": {
	    "fromname": "AC Admin",
        "fromemail": "noreply@example.com",
        "reply2": "hello@example.com",
        "subject": "You are subscribing to %LISTNAME%",
        "preheader_text": "Pre-header Text",
        "text": "hello",
        "html": "<div>hello</div>"
	}
}

{
    "message": {
        "userid": "0",
        "ed_instanceid": "0",
        "ed_version": "1",
        "cdate": "2024-08-06T16:31:45-05:00",
        "mdate": "2024-08-06T16:33:23-05:00",
        "name": "",
        "fromname": "AC Admin",
        "fromemail": "noreply@example.com",
        "reply2": "hello@example.com",
        "priority": "3",
        "charset": "utf-8",
        "encoding": "8bit",
        "format": "mime",
        "subject": "You are subscribing to %LISTNAME%",
        "preheader_text": "Pre-header Text",
        "text": "hello",
        "html": "<div>hello</div>",
        "htmlfetch": "now",
        "textfetch": "now",
        "hidden": "0",
        "preview_mime": "",
        "preview_data": null,
        "has_predictive_content": "0",
        "links": {
            "user": "https://accountName.api-us1.com/api/3/messages/56/user",
            "hyperlinks": "https://accountName.api-us1.com/api/3/messages/56/hyperlinks"
        },
        "id": "56",
        "user": null
    }
}

200200

404404