> For the complete documentation index, see [llms.txt](https://docs.cw.crisisworks.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.cw.crisisworks.com/security-and-support/faqs/troubleshooting/system-administration/mail-merge-your-form-could-not-be-saved.md).

# Mail Merge: Your form could not be saved

## Problem

When saving an HTML [Mail Merge Template](/system-administration/configuring-the-system/mail-merge-templates.md), you receive this message:

> Your form could not be saved

## Explanations

### HTML Problems

Problems with the HTML, such as syntax or structure errors can cause this.

#### Solution

Check that the HTML is properly structured and error free as per the [Merge Template Reference](/security-and-support/technical-reference/merge-template-reference.md).

### Security Block

Our Web Application Firewall (WAF) monitors for "HTML injection" threats, and it has mistakenly detected a threat in your HTML/CSS.

#### Solution

* Avoid inline styles, particularly those that try to insert hidden text or those that re-position text , and ensure that your template code meets the requirements set out in the [Style your template with CSS](/security-and-support/technical-reference/merge-template-reference/style-your-template.md).
* Keep your HTML template as simple as possible using semantic elements and classes
* Avoid defining styles using a `<style>` tag. If you need more CSS classes, you can define them in the Advanced CSS field instead

## More Help

If you've read through these instructions and are still stuck [contact the Service Desk](/security-and-support/maintenance-and-support/accessing-support.md) we can assist you to identify potential problems with the template/s.

Send us a copy of your HTML via the service desk and we can help to resolve the issue.


---

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