Errors and warnings

The template editor checks your HTML and form as you work. Problems come in two kinds:

• Errors would break the email or the form. You can’t publish until they’re fixed.
• Warnings are unfinished work, such as a marker that doesn’t have a field yet. You can publish with them, so an urgent fix to one module never waits for a half-built module elsewhere.

The Problems button in the top bar shows how many there are, amber for warnings and red for errors. Click it for a list grouped by part. Click a problem to open its part and field. Dots on the outline and on form rows show where problems are.

Errors

Problem	What it means and how to fix it
”…” isn’t a marker name.	Marker names start with a letter and use only letters, digits, - and _. Rename the marker.
The marker ”…” is used more than once.	Marker names must be unique within a part. Rename one of them.
The <tag> marked ”…” needs a closing </tag>.	A marked element must be closed so Modular Mail knows where it ends. Add the closing tag.
An image field goes on an <img>; ”…” is a <tag>.	Move the marker to the <img>, or change the field’s type.
A link field goes on an <a>; ”…” is a <tag>.	Move the marker to the <a>, or change the field’s type.
Rich text is paragraphs, so its marker goes on a <td> or <div>; ”…” is a <tag>.	Put the marker on the cell or <div> around the paragraphs, not on a <p> or heading.
A <tag> can’t hold text.	A text field is on a void element such as <img> or <br>. Move the marker.
”…” has markers inside it, which its content would replace.	A text or rich text field would overwrite other marked elements inside it. Move the marker to an element with no markers inside, or remove the inner markers.
”…” is filled by more than one field.	Two fields use the same marker. Point one of them at a different marker.
”…” isn’t inside the repeater ”…”.	An item field’s marker must be inside the repeater’s element. Move the marker or the field.
”…” is inside the repeater ”…”. Add its field to the repeater.	A field outside the repeater uses a marker inside it. Move the field into the repeater.
A repeater can’t be inside another repeater.	Repeaters can’t be nested. Use a separate module or a fixed layout instead.
Its minimum number of items is more than its maximum.	Lower the repeater’s Fewest items or raise its Most items.
Choose a default option.	A choice needs a default option for new modules. Pick one.

Warnings

Problem	What it means
The marker ”…” has no field yet.	The element keeps its content and can’t be edited. Add a field, or remove the marker if it isn’t needed.
It has no marker yet.	The field doesn’t fill anything. Pick or type a marker in its settings.
There’s no marker ”…” in the HTML yet.	Add data-mm="…" to the element the field should fill. The field’s settings have a copy button.
”…” has formatting inside it (<tag>), which the marketer’s text will replace. Use rich text to keep formatting.	A text or link field’s element contains tags such as <span> or <strong>. They’ll be lost once the marketer types. Move the style onto the marked element or switch to rich text.
Its options don’t set anything yet.	A choice has no targets. Add a style or attribute under Sets.
It doesn’t remove or hide anything yet.	A toggle has nothing to do. Add markers to remove or fields to hide.
It hides a field that isn’t in the form.	A toggle points at a field or group that was deleted. Remove it from Hides in the form.
It has no fields yet.	A repeater has no item fields. Add some with Add field to repeater.

If the workspace has integrations, you may also see a warning that a field’s product or post mapping is no longer offered by the connected site. Choose another mapping or remove it.

Problems in campaigns

Campaigns have their own checks, shown beside each field as marketers work. See Filling in content.