Subject Lines You Can Use in a Thank You Email

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No business can ever succeed until and unless customers purchase the products and services on offer. Even though modern-day businesses invest heavily in marketing campaigns, ultimately, their successes and failures all depend on their customers, which is why thanking customers can go a long way in cementing relationships with them.

Businesses’ primary method of communication with their customers is email and over recent years, the popularity of thank you emails has soared. If you want to show your gratitude to your customers via email, you can’t just rely on the main body of the email. The subject of the email plays a vital part too, as it is the first thing that catches the eye when a customer opens his inbox. In this post, we’ll look at what makes for a truly impactful subject line for thank you email along with examples. So, let’s get started!

The qualities that a subject line must have for a thank you email

The subject line of an effective thank you email must possess a few qualities and in this section, we’ll find out what they are.

  • Crisp and concise: Writing long subject lines is a bad idea for any sort of email as subject lines that are too long don’t appear in full in the inbox, be it on a desktop/laptop or a mobile device. So before anything else, your thank you email’s subject line should be crisp and concise. Let’s take a look at two examples that more or less state the same thing, but are different in terms of their length:

Thank you for reviewing our product.’

‘You took your time to review our product and we are thankful for that.’

While some may say that the second example has a more personal feel to it, the fact is that it’s just too long for the subject line. Instead of writing such an elaborate sentence as the subject line for thank you email, it would be better to include it in the main email body. The first example hits the nail right on its head without being too flashy or elaborate, making it a much better subject line.

  • The reason: If you ever receive an email with just the words ‘Thank you’ as the subject line, what would your response be? In all probability, you’d want to know why you’re being thanked, as gratitude always has a reason. While the phrase ‘thank you’ has just two words and one might argue that it fits the crisp and concise criteria, it fails to state the reason for the gratitude. So always remember to state the reason why you’re thanking somebody over email.

‘Thank you for your time.’

‘We owe our success to you. Thank you.’

Both examples state clear reasons to be thankful for, so while composing a thank you mail, remember to include the reason in your subject line, as without one, recipients may think it’s yet another spam mail.

  • A tone that goes with the brand identity: If the image you’ve cultivated for your brand is one that’s hip, modern, and casual, there’s a lot of room for you to keep things informal in your thank you emails to customers. However, if your brand identity has been built around class, courtesy, and sophistication, taking an informal approach to your thank you emails may not work out. Let’s understand the difference through two example subject lines.

‘Thanks for checking out our website.’

‘Thank you for visiting our website.’

The first example is an informal one as it starts with thanks, which is a shorter and more informal way of saying thank you. The other element that adds a fair bit of informality to the first example is the phrase ‘checking out’, which is commonly used by youngsters in informal settings. On the other hand, the second example is completely formal, as it uses the full ‘thank you’ phrase instead of just ‘thanks’. Also, it includes the word ‘visiting’, which is considered formal, contrasting to the phrase ‘checking out’ from the first example.

  • Proper use of capital letters and punctuation marks: How you write the subject line for thank you email is also very important, as the email serves as a communication between a business and an individual and not as one between two friends. For informal communication between two friends via an email, it’s not mandatory to bother about the proper use of capital letters and punctuation marks. However, if you want your thank you email to really leave a good impression in the minds of your customers, you must pay attention to punctuations, capitalization, and spellings.

‘thnx 4 yr hlp’

‘Thanks for your help.’

See the difference between the two examples? The first one is employing what the world knows as SMS-text, while the second one is using proper English with correct spellings, punctuation, and capitalization. The first is alright when it stays between two friends or informal acquaintances, but no matter how casual or hip your brand identity is, you can’t use SMS-text with your customers.

  • The use of emojis: If you want the subject line for thank you email to look colorful and inviting for customers, why not consider emojis? A simple heart or hug emoji after your subject line can work wonders to add a dash of color. Businesses that maintain a degree of informality across all their communications with customers can use emojis instead of certain words as well. For example, the heart emoji is often used informally to express love, so a thank you email subject line can be along the lines of:

‘We <heart emoji> you <customer’s name> for supporting us.’

Again, the use of emojis is something that only businesses with informal brand identities should use. Businesses that maintain absolute formality across all their communications with their customers should steer clear of this particular practice.

So now that you know about the qualities that your thank you email subject lines should have, depending on the kind of brand identity you’ve built, it’s time to look at when to write thank you email to customers.

The occasions befitting of thank you emails

You can draft thank you emails for your customers for numerous occasions, but the following are the ones for which a thank you email can really work well:

  • The purchase of a product: So a customer has just bought a product from you and there’s simply no better occasion to let the customer know just how thankful you are.

    ‘Thank you for choosing us.’

Irrespective of the industry and niche your business operates and specializes in, you have competitors, and thanks to the internet, customers can easily look up information that would tell them about the businesses that are ideal for serving what they are looking for. If the customer chooses you ahead of your competitors, he deserves a thank you email and the aforementioned subject line, despite being fairly common, can go great lengths towards establishing the customer’s trust and faith in your business.

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  • Feedback: When a customer leaves a review regarding your business or one of your products that he has recently purchased, it deserves a thank you note, irrespective of the nature of the review. In recent years, most businesses have allowed customers to leave reviews on their official websites, but surprisingly, many only respond to positive reviews. Don’t make that mistake.

Of course, if the review is positive, the following subject line would be apt:

‘Thanks for your review.’

However, if the review is negative and points out some areas in which your business can improve, you should appreciate the customer’s honesty with subject lines like:

‘Thanks for your honest review.’

‘Thank you for your criticism.’

‘We care about your honest feedback.’

  • Loyalty: If a customer displays a sense of loyalty by repeatedly purchasing your business’ products, you should reward him not just with a thank you email, but also with some special offers. The following subject lines can bring out how grateful you are for the customers who have trusted your business for a long time:

Thank you for standing by us through thick and thin.’

‘Thanks for your relentless support.’

If you include details about some special offers and discounts that you’ve specially reserved for the loyal customer, simply imagine the positive emotional effect it can have on the customer.

  • Subscriptions: In an age where businesses continue to spam customers’ inboxes left, right, and center, most people choose not to subscribe to newsletters simply to avoid additional emails. However, if a customer does subscribe to your business’ newsletters, it’s something to be appreciative of and you should let your customer know about it.

‘Thanks for subscribing to our newsletter.’

Even though this is a fairly run-of-the-mill thank you email, it still has the potential to show a customer that his decision to subscribe to your business’ newsletter is valued by you.

So, we hope that you now know what kind of subject lines you can use in a thank you email. Of course, feel free to experiment and innovate, but do keep the subject lines short, concise, and to-the-point.

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