How to troubleshoot Mailchimp template customization?

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Answer

Troubleshooting Mailchimp template customization involves addressing common issues like image display problems, CSS formatting inconsistencies, and template rendering errors across email clients. Most problems stem from improper HTML/CSS implementation, email client compatibility limitations, or editor-specific quirks in Mailchimp's builder. The solutions range from technical code adjustments to simple interface checks, depending on whether you're using Mailchimp's drag-and-drop editor or custom-coded templates.

Key findings from the sources:

  • Image and formatting issues are the most frequent problems, often requiring inline CSS and simplified styling [1]
  • Template structure problems commonly involve incorrect use of mc:repeatable elements and column blocks [2][10]
  • Email client compatibility (especially Gmail iOS and Outlook) frequently causes rendering inconsistencies [7]
  • Saved templates may not appear due to interface navigation oversights rather than technical failures [5]

Common Mailchimp Template Issues and Solutions

Image and Formatting Problems

Image display issues and broken formatting represent the most common template customization challenges in Mailchimp. These problems typically arise from improper file handling, unsupported code, or CSS compatibility limitations across email clients. The solutions require both technical adjustments and understanding Mailchimp's specific requirements.

For images not displaying correctly, verify the upload process first. Mailchimp's official guide emphasizes that images must be properly uploaded through their Content Studio rather than linked from external sources [1]. When images still fail to appear:

  • Check that all image URLs in your HTML use the full https:// path from Mailchimp's Content Studio
  • Ensure images don't exceed Mailchimp's size limits (recommended under 1MB per image)
  • Use supported file formats (JPG, PNG, GIF) and avoid progressive JPEGs [9]
  • Test with Mailchimp's "Preview and Test" tool to identify which email clients show issues

CSS and font formatting problems often stem from email client limitations. Mailchimp specifically recommends:

  • Using inline CSS instead of external stylesheets or