Sending emails from Sheets in Google Sheets - Practice Problems & Coding Challenges

Challenge - 5 Problems

📊 Formula Result

intermediate

What is the output of this formula for sending emails?

Given the formula =IF(A2="", "No email", IF(ISERROR(SEARCH("@", A2)), "Invalid email", "Ready to send")) in cell B2, what will be the output if A2 contains userexample.com?

A "Ready to send"

B "No email"

C "Invalid email"

D An error message

💡 Hint

Check if the email contains the '@' symbol.

The formula checks if cell A2 is empty first. If not, it looks for '@' in the email. Since userexample.com lacks '@', it returns "Invalid email".

❓ Function Choice

intermediate

Which function sends emails from Google Sheets?

You want to send an email automatically from a Google Sheets script. Which function should you use?

A MailApp.sendEmail()

B SpreadsheetApp.sendEmail()

C GmailApp.sendMail()

D EmailApp.send()

💡 Hint

Look for the official Google Apps Script service for sending emails.

MailApp.sendEmail() is the correct function to send emails from Google Sheets scripts. GmailApp also sends emails but is more for Gmail-specific actions.

🎯 Scenario

advanced

You want to send personalized emails to a list in Sheets. Which approach is best?

You have a sheet with columns: Name, Email, and Score. You want to send each person an email with their name and score. What is the best way to do this?

A Manually send emails one by one using the Gmail interface.

B Use the =EMAIL() formula in Sheets to send emails automatically.

C Use a formula in Sheets to create email text and copy-paste it into your email client.

D Write a Google Apps Script that loops through rows and uses MailApp.sendEmail() with personalized messages.

💡 Hint

Think about automation and personalization using scripts.

Option D automates sending personalized emails directly from the sheet using a script. Other options are manual or invalid (no =EMAIL() formula exists).

📊 Formula Result

advanced

What error occurs with this script snippet?

Consider this Google Apps Script code snippet: function sendEmails() { var sheet = SpreadsheetApp.getActiveSpreadsheet().getSheetByName('Data'); var email = sheet.getRange('B2').getValue(); MailApp.sendEmail(email, 'Hello', 'Test message'); } What error will occur if cell B2 is empty?

A TypeError: Cannot send email to an empty address

B No error, email sent to blank address

C ReferenceError: sheet is undefined

D SyntaxError in the script

💡 Hint

Think about what happens if the email address is empty.

If the email address is empty, MailApp.sendEmail() throws a TypeError because it requires a valid recipient address.

❓ data_analysis

expert

How many emails will be sent by this script?

A sheet named 'Contacts' has 5 rows of data starting from row 2. Column A has names, column B has emails. The script below runs: function sendBatchEmails() { var sheet = SpreadsheetApp.getActiveSpreadsheet().getSheetByName('Contacts'); var data = sheet.getRange(2, 1, 5, 2).getValues(); for (var i = 0; i < data.length; i++) { if (data[i][1].indexOf('@') > -1) { MailApp.sendEmail(data[i][1], 'Hi ' + data[i][0], 'Your info'); } } } If 2 emails in column B are empty strings and 1 email is missing '@', how many emails will be sent?

A 0

B 2

C 5

D 3

💡 Hint

Count only rows where the email contains '@'.

Out of 5 rows, 2 emails are empty (no '@'), 1 email missing '@', so only 2 emails have '@'. The script sends emails only if '@' is present, so 2 emails sent.

But the question states 2 empty and 1 missing '@', so 5 - 3 = 2 emails sent.

Practice

1. What is the main purpose of using Google Apps Script to send emails from Google Sheets?

easy

A. To protect the sheet with a password

B. To send emails automatically using data from the sheet

C. To create charts and graphs in the sheet

D. To sort data alphabetically

Solution

1. Step 1: Understand the role of Google Apps Script

   Google Apps Script allows automation in Google Sheets, including sending emails.

2. Step 2: Identify the purpose related to emails

   The script reads data from the sheet and sends emails automatically, saving time.

3. Final Answer:

   To send emails automatically using data from the sheet -> Option B

4. Quick Check:

   Sending emails = To send emails automatically using data from the sheet [OK]

Hint: Remember: Apps Script automates tasks like emailing [OK]

Common Mistakes:

• Confusing email sending with data sorting
• Thinking Apps Script only creates charts
• Assuming it protects sheets with passwords

2. Which of the following is the correct way to send an email using Google Apps Script in Google Sheets?

easy

A. MailApp.sendEmail(recipient, subject, body);

B. EmailApp.sendMail(recipient, subject, body);

C. Mail.sendEmail(recipient, subject, body);

D. SendMailApp.email(recipient, subject, body);

Solution

1. Step 1: Recall the correct Google Apps Script email function

   The correct service is MailApp with the method sendEmail.

2. Step 2: Verify the syntax

   The syntax is MailApp.sendEmail(recipient, subject, body); which matches MailApp.sendEmail(recipient, subject, body);.

3. Final Answer:

   MailApp.sendEmail(recipient, subject, body); -> Option A

4. Quick Check:

   Correct function = MailApp.sendEmail(recipient, subject, body); [OK]

Hint: Use MailApp.sendEmail() to send emails [OK]

Common Mistakes:

• Using wrong service names like EmailApp or SendMailApp
• Mixing method names like sendMail instead of sendEmail
• Incorrect order or spelling of parameters

3. Given this script snippet in Google Sheets:

function sendEmails() {
  var sheet = SpreadsheetApp.getActiveSpreadsheet().getActiveSheet();
  var email = sheet.getRange('A2').getValue();
  var message = sheet.getRange('B2').getValue();
  MailApp.sendEmail(email, 'Hello', message);
}

What happens when you run sendEmails()?

medium

A. Nothing happens because sendEmail is not a valid method

B. An error occurs because getRange needs row and column numbers

C. The script sends emails to all rows in the sheet

D. An email is sent to the address in cell A2 with the message from B2

Solution

1. Step 1: Analyze the script's actions

   The script gets the email from cell A2 and message from B2, then sends an email.

2. Step 2: Confirm the method usage

   getRange('A2') and getRange('B2') are valid, and MailApp.sendEmail is correct.

3. Final Answer:

   An email is sent to the address in cell A2 with the message from B2 -> Option D

4. Quick Check:

   Email sent to A2 with B2 message = An email is sent to the address in cell A2 with the message from B2 [OK]

Hint: Check cell references and MailApp method correctness [OK]

Common Mistakes:

• Thinking getRange('A2') is invalid syntax
• Assuming the script sends emails to all rows automatically
• Believing sendEmail is not a valid method

4. You wrote this script to send emails from your sheet:

function sendEmails() {
  var sheet = SpreadsheetApp.getActiveSpreadsheet().getActiveSheet();
  var email = sheet.getRange('A2').getValue();
  var message = sheet.getRange('B2').getValue();
  MailApp.sendEmail(email, 'Subject', message)
}

But it does not send any emails. What is the likely problem?

medium

A. You forgot to authorize the script to send emails

B. Missing semicolon after sendEmail line causes script failure

C. getRange('A2') is incorrect syntax

D. MailApp.sendEmail requires four parameters

Solution

1. Step 1: Check syntax and parameters

   The script syntax is mostly correct; missing semicolon is not fatal in Apps Script.

2. Step 2: Consider authorization requirements

   Google Apps Script requires user authorization to send emails; without it, emails won't send.

3. Final Answer:

   You forgot to authorize the script to send emails -> Option A

4. Quick Check:

   Authorization needed for sending emails = You forgot to authorize the script to send emails [OK]

Hint: Always authorize scripts before sending emails [OK]

Common Mistakes:

• Assuming missing semicolon stops script
• Thinking getRange('A2') is invalid
• Believing sendEmail needs four parameters

5. You want to send personalized emails to multiple recipients listed in column A, with messages in column B, starting from row 2. Which script correctly sends emails to all rows with data?

hard

A. function sendAllEmails() {
var sheet = SpreadsheetApp.getActiveSpreadsheet().getActiveSheet();
var lastRow = sheet.getLastRow();
for (var i = 2; i <= lastRow; i++) {
var email = sheet.getRange('A' + i).getValue();
var message = sheet.getRange('B' + i).getValue();
MailApp.sendEmail(email, message, 'Hello');
}
}

B. function sendAllEmails() {
var sheet = SpreadsheetApp.getActiveSpreadsheet().getActiveSheet();
var lastRow = sheet.getLastRow();
for (var i = 1; i < lastRow; i++) {
var email = sheet.getRange(i, 1).getValue();
var message = sheet.getRange(i, 2).getValue();
MailApp.sendEmail(email, 'Hello', message);
}
}

C. function sendAllEmails() {
var sheet = SpreadsheetApp.getActiveSpreadsheet().getActiveSheet();
var lastRow = sheet.getLastRow();
for (var i = 2; i <= lastRow; i++) {
var email = sheet.getRange(i, 1).getValue();
var message = sheet.getRange(i, 2).getValue();
MailApp.sendEmail(email, 'Hello', message);
}
}

D. function sendAllEmails() {
var sheet = SpreadsheetApp.getActiveSpreadsheet().getActiveSheet();
var lastRow = sheet.getLastRow();
for (var i = 2; i <= lastRow; i++) {
var email = sheet.getRange(i, 1).getValue();
var message = sheet.getRange(i, 2).getValue();
MailApp.sendEmail('Hello', email, message);
}
}

Solution

1. Step 1: Check loop range and indexing

   The loop must start at row 2 to skip headers and go to lastRow inclusive.

2. Step 2: Verify getRange usage and sendEmail parameters

   Using getRange(row, column) is correct. sendEmail parameters are (email, subject, message).

3. Final Answer:

   Loops from row 2 to lastRow and sends emails with correct parameters -> Option C

4. Quick Check:

   Loop from 2 to lastRow, sendEmail(email, subject, message) = function sendAllEmails() { var sheet = SpreadsheetApp.getActiveSpreadsheet().getActiveSheet(); var lastRow = sheet.getLastRow(); for (var i = 2; i <= lastRow; i++) { var email = sheet.getRange(i, 1).getValue(); var message = sheet.getRange(i, 2).getValue(); MailApp.sendEmail(email, 'Hello', message); } } [OK]

Hint: Loop from row 2; use sendEmail(email, subject, message) [OK]

Common Mistakes:

• Starting loop at row 1 including headers
• Swapping subject and message parameters
• Using incorrect getRange syntax