# Add-charge by Character

The "Add-charge by Character" feature allows merchants to charge customers additional fees based on the number of characters entered by customers in a Single Line Text option. 

This feature is particularly useful for products that require customization, such as engraving, monogramming, or personalized messages. 

<figure><img src="/files/4rKRFPgfUuvdZ4ERWK4b" alt=""><figcaption></figcaption></figure>


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# Agent Instructions: Querying This Documentation

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```
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```

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Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.