In order to be a successful invoice clerk, you must possess a combination of hard and soft skills. Hard skills are the technical and practical abilities required for the job, such as proficiency in accounting software, knowledge of invoicing and payment procedures, attention to detail, accuracy, and efficiency in handling numbers and data, and the ability to use office equipment. Soft skills refer to interpersonal and communication skills that allow you to work well with others. These include customer service, courtesy, professionalism in dealing with customers and vendors, problem-solving skills, teamwork, collaboration, adaptability in working with different people and situations, time management, organization, and prioritization in managing multiple tasks and deadlines.