<ul data-eligibleForWebStory="false"><li>Calling toString() directly on an object in Apex code can lead to NullPointerExceptions in production due to unexpected null values.</li><li>Using String.valueOf() instead of toString() is a safer alternative as it gracefully handles null values and adds negligible performance cost.</li><li>String.valueOf() is optimized internally and is recommended for defensive coding in Salesforce Apex to prevent production failures.</li><li>While String.valueOf() is generally preferred, there are specific cases, like UUID generation, where using toString() is more suitable.</li></ul>

Why Your Apex Code is One toString() Away from Breaking Production

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