Writing effective subject lines in Digital Marketing - Mini Project: Build & Apply

Writing Effective Subject Lines

📖 Scenario: You work for a small online store that sends weekly email newsletters to customers. Your goal is to create subject lines that catch attention and encourage people to open the emails.

🎯 Goal: Build a list of email subject lines, set a rule to pick the best ones, filter the list based on that rule, and finalize the chosen subject lines for sending.

📋 What You'll Learn

Create a list of 5 exact subject lines

Add a minimum length threshold variable

Filter the subject lines to keep only those longer than the threshold

Add a final confirmation message variable

💡 Why This Matters

🌍 Real World

Effective email subject lines increase the chance that customers open marketing emails, improving engagement and sales.

💼 Career

Marketing professionals often need to craft and test subject lines to optimize email campaign performance.

1

Create the list of subject lines

Create a list called subject_lines with these exact entries: 'Big Sale Today!', 'New Arrivals Just In', 'Last Chance to Save', 'Exclusive Offer Inside', and 'Your Weekly Update'.

Digital Marketing

# Create the list of subject lines
# Your code here

Need a hint?

Use square brackets [] to create a list and separate each subject line with commas.

2

Set the minimum length threshold

Create a variable called min_length and set it to 15 to represent the minimum number of characters a subject line should have.

Digital Marketing

subject_lines = ['Big Sale Today!', 'New Arrivals Just In', 'Last Chance to Save', 'Exclusive Offer Inside', 'Your Weekly Update']
# Set the minimum length threshold
# Your code here

Need a hint?

Just assign the number 15 to the variable min_length.

3

Filter subject lines by length

Create a new list called filtered_subjects that includes only the subject lines from subject_lines whose length is greater than min_length. Use a list comprehension with for subject in subject_lines and check len(subject) > min_length.

Digital Marketing

subject_lines = ['Big Sale Today!', 'New Arrivals Just In', 'Last Chance to Save', 'Exclusive Offer Inside', 'Your Weekly Update']
min_length = 15
# Filter the subject lines by length
# Your code here

Need a hint?

Use a list comprehension to check each subject's length and keep only those longer than min_length.

4

Add the final confirmation message

Create a variable called final_message and set it to the string 'Subject lines ready to send!' to confirm the selection is complete.

Digital Marketing

subject_lines = ['Big Sale Today!', 'New Arrivals Just In', 'Last Chance to Save', 'Exclusive Offer Inside', 'Your Weekly Update']
min_length = 15
filtered_subjects = [subject for subject in subject_lines if len(subject) > min_length]
# Add the final confirmation message
# Your code here

Need a hint?

Assign the exact string to final_message to complete the project.