We have built some custom Content Blocks for emails for our client so that they can drag-and-drop them and build their own mails without the help of HTML. All the necessary links are provided in the footer (unsubscribe, physical address, etc). But in the code we have commented the Profile Center URL out (
<!-- %%profile_center_url%% -->). The reason is that, even though this link is obligatory, but our client has their own Profile center and they do not want subscribers to go to the SFMC.
The way to fix it is to switch to the Plain Text version, add the profile link URL variable and then continue. But of course, we do not want to add this unnecessary step for the client.
They do not have any check or control or the Plain Text version. Is there a way to avoid this message?