If there has been some delay from your end then you must always apologize to your client for the delay by writing an apology email. The purpose of apology email sample is to formally apologize to your client for the delay that has happened.
Sample Template of Apology Email to Client for Delay
Dear Mr. Adam,
I am writing this email to apologize for the delay in delivery of your order. This delay in delivery of your order happened because of shortage of one of the fabrics that you had picked in designing of customized cushion covers. The particular color and fabric were not in stock and therefore, we had to source it from another city which took a little while.
At Zen Home Furnishing Solutions, we work hard to make it a perfect shopping experience for our clients. And all this while we were trying to deliver your product on time but despite all the efforts, it got delayed and we sincerely apologize for the delay and the inconvenient this might have caused you.
We will make sure that we do not give you any chance for any complaints and will always make sure that the orders get delivered on time.
I hope you will consider our situation and understand it.
Zen Home Furnishing Solutions