A Certificate of Sponsorship is a necessary document for individuals applying for a UK work visa, such as the Skilled Worker Visa. Issued by an authorized UK employer, the certificate confirms that you have a job offer that meets the eligibility requirements for the visa. It acts as proof that your employer is sponsoring your stay in the UK. Securing a Certificate of Sponsorship is vital for your visa application. Ensuring the correct documentation and requirements are met is crucial, and professional advice can help streamline the process, ensuring a smooth transition to working in the UK.