Subject: Quick Heads Up: Need a Tiny Bit More Time for [Project Name]!
Hey [Client Name],
Hope you’re having a good week!
Just wanted to give you a quick heads-up about the [Project Name] deadline. We’ve hit a small, unexpected [briefly explain the valid and unavoidable reason, e.g., “technical puzzle we need to solve” or “delay with a third-party partner”], and to make sure we deliver the absolute best quality, we’re going to need just a little more time.
We’re looking at an extra [Number] business days, pushing our target completion to around [New Proposed Date].
We’re already working hard to minimize any impact and will keep you in the loop every step of the way! We’re so sorry for any inconvenience this might cause.
Thanks a ton for your flexibility!
Best,
[Your Name/Project Manager Name]
[Your Company Name]