# How long are QR codes valid for? Do they expire? Static QR Codes are valid for as long as you want and will never expire. The only instance where the Code might “expire” is when the link is changed or deleted, rendering it unscannable. We encourage you to create Dynamic Codes so that you have total control as the content or links are replaceable no matter what happens. Plus, it has plenty of other advantages for your campaigns! --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.sqr.co/questions-and-answers/about-sqr/how-long-are-qr-codes-valid-for-do-they-expire.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.