Marketo Supported Emojis | Knak

Overview

You may see an error when syncing an email from Knak to Marketo that contains an emoji. This happens because Marketo does not support every emoji. Marketo only renders:

ASCII characters
Unicode characters up to version 5.2

Many modern emojis were introduced after Unicode 5.2. These emojis can cause a sync error when sending emails from Knak to Marketo.

When This Error Appears

The error appears during the email sync process. Marketo blocks the email if it contains unsupported characters.

Marketo emoji validation error during email sync.

Why Some Emojis Fail

Marketo supports an older Unicode standard. New emojis fall outside this supported character set.

Because of this limitation:

Some emojis sync successfully.
Some emojis trigger a sync error.
Some emojis render as blank characters in email clients.

You can find more information from this external document from Marketo.

Fix an Emoji Sync Error

Follow these steps to resolve the error.

Open your email in Knak.
Locate the emoji in your email content.
Delete the unsupported emoji.
Replace it with a supported Unicode character.
Sync the email to Marketo again.

Find Emojis That Work in Marketo

Use trusted Unicode reference websites to copy supported characters.

Visit the following sites to copy Unicode symbols and emojis that work across most email clients:

Choose emojis released in Unicode 5.2 or earlier to avoid sync errors.

💡 Tip: Use Knak's Symbol and Emoji Picker to filter for Marketo Supported Emojis. This helps you choose compatible emojis before you sync your email to Marketo.

Best Practices

Follow these tips when using emojis in Marketo emails:

Use simple and widely supported emojis.
Avoid recently released emojis.
Test your email before syncing to Marketo.
Copy Unicode characters from trusted reference sites.

Troubleshooting

Emojis Do Not Display Correctly in Marketo Subject Lines

If an emoji does not display correctly in your subject line when you send an email from Marketo, check the spacing around the emoji.

How to fix it:

Add a space before and after each emoji in your subject line.

This spacing helps Marketo process the emoji correctly. Without spaces, the encoded values used to represent emojis can run together. This may prevent the email from displaying the emojis correctly.

Example:

Avoid: Your offer is here🎉Don't miss out
Use: Your offer is here 🎉 Don't miss out

Encoded Text in Marketo Previews

You may see encoded text instead of the emoji when you preview the subject line in Marketo. This is expected.

Marketo may display the Q-encoded value used to represent the emoji in the preview. The encoded value does not necessarily mean there is an issue with your subject line.

Need more help? Contact support via live chat using the chat bubble in the bottom right corner or email support@knak.com.