IMPORTANT: Tell the customer
If you are working on something and the turnaround is 1 week but you won’t get the task finished until 1 week and 1 day, let the customer know. Politely introduce yourself and explain what you have done so far for the customer. Then explain what else there is to do and when they can expect another email from you saying when this will be completed.
Not only will this alleviate the anxiety from the customer from receiving an update, it also helps us appear more transparent as customers are fed information rather than having to get in touch and ask for it.
Ultimately, we’re hoping for a smoother experience for all involved and we want to explain when things don’t go to plan (such as delays in alterations being completed).