def create_raw_request(data):
    """Converts the raw request into a POST string.

    Parameters:
        data (dict): The POST request data dictionary.

    Returns:
        str: The POST request data as a formatted string.
    """
    if data:
        raw_strings = []
        for key, item in data.items():
            raw_strings.append('{}={}'.format(key, item))
        return '&'.join(raw_strings)
    return data
