In the fast-paced world of software development, unexpected client requests can throw you off balance, especially when you're unsure if they were promised. Instead of getting frustrated, take this as an opportunity to improve your processes. Start by ensuring that all expectations, including potential customization work, are clearly documented in your agreements. By doing so, you’ll prevent future misunderstandings, protect your time, and ensure that both you and your clients are on the same page from the start. Also, update those agreements when new areas of potential misunderstanding arise. It’s a proactive step that will enhance your professionalism and contribute to smoother, more successful client relationships.