Welcome to the new Box Support website. Check out all the details here on what’s changed.

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  • terry palmer

    I was able to figure this out. Putting here for future reference for anyone searching.

    $primaryKey = ".." //webhook primarykey provided from box

    $dataStr = $payload . $timestamp;

    $webhookSig = base64_encode(hash_hmac("sha256", $dataStr, $primaryKey, TRUE));

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