Get Gmail Emails By Assigned Label

GetGmailEmails.gs

var ui = SpreadsheetApp.getUi();
function onOpen(e){
  
  ui.createMenu("Gmail Manager").addItem("Get Emails by Label", "getGmailEmails").addToUi();
  
}

function getGmailEmails(){
  var input = ui.prompt('Label Name', 'Enter the label name that is assigned to your emails:', Browser.Buttons.OK_CANCEL);
  
  if (input.getSelectedButton() == ui.Button.CANCEL){
    return;
  }
  
  var label = GmailApp.getUserLabelByName(input.getResponseText());
  var threads = label.getThreads();
  
  for(var i = threads.length - 1; i >=0; i--){
    var messages = threads[i].getMessages();
    
    for (var j = 0; j <messages.length; j++){
      var message = messages[j];
      if (message.isUnread()){
        extractDetails(message);
        GmailApp.markMessageRead(message);
      }
    }
    threads[i].removeLabel(label);
    
  }
  
}

function extractDetails(message){
  var dateTime = message.getDate();
  var subjectText = message.getSubject();
  var senderDetails = message.getFrom();
  var bodyContents = message.getPlainBody();
  
  var activeSheet = SpreadsheetApp.getActiveSpreadsheet().getActiveSheet();
  activeSheet.appendRow([dateTime, senderDetails, subjectText, bodyContents]);
}

Thanks a ton @moayadhani, fortunately I added 2 labels with the same mindset that if one is removed by script, the other one is still there.

Happy to know that was the solution to it!

Also @moayadhani, how can we ensure that whenever there is another email added in that label then it is automatically fetched by a script?

Will I have to set a trigger on a daily basis to guess if there is any, it will be added else no change will appear in the sheet?

@moayadhani
How can we got to know who is the last user & last activity in shared gmail using appscript.

Hi @adamincolorado You can run scripts automatically by creating time-driven triggers as an example. I have made an animated image as a simple demonstration for you guys on how to do that, and here is the link: https://i.imgur.com/UvHgsak.gif

The script that I am sharing in this Git takes care of what you want by not considering the previously processed emails and that is done by making processed emails as READ. You can view my YouTube video to see a demonstration about this script.

Please get back to me to me at moa29000@gmail.com in case you need further help.

Hi @moayadhani,

This has been very helpful and the manually triggered script works beautifully, although I changed it to look for a predetermined label like you did in the YouTube video. I would like it to run at least several times a day, and appreciated the video demonstration you provided on how to create a trigger for it to run automatically. Unfortunately I get the same error message every time:

Exception: Cannot call SpreadsheetApp.getUi() from this context.
at unknown function

Do you have a suggestion for what I could adjust to make it work?

Thank you.

@moayadhani Hey, I'm getting error with this script. And received this kind of body. Can you please look into this?

this is inbox message.

@moayadhani Hey, I'm getting error with this script. And received this kind of body. Can you please look into this?

this is inbox message.

Looks like you have getID instead of getPlainBody in your variables?

Hi @ShilpaST,

@moayadhani How can we got to know who is the last user & last activity in shared gmail using appscript.

I am not sure what you exactly mean but I guess that such tracking is hard to do. Are you tracking the sent emails or what?

Hi @adamincolorado You can run scripts automatically by creating time-driven triggers as an example. I have made an animated image as a simple demonstration for you guys on how to do that, and here is the link: https://i.imgur.com/UvHgsak.gif
The script that I am sharing in this Git takes care of what you want by not considering the previously processed emails and that is done by making processed emails as READ. You can view my YouTube video to see a demonstration about this script.
Please get back to me to me at moa29000@gmail.com in case you need further help.

Hi @moayadhani,

This has been very helpful and the manually triggered script works beautifully, although I changed it to look for a predetermined label like you did in the YouTube video. I would like it to run at least several times a day, and appreciated the video demonstration you provided on how to create a trigger for it to run automatically. Unfortunately I get the same error message every time:

Exception: Cannot call SpreadsheetApp.getUi() from this context. at unknown function

Do you have a suggestion for what I could adjust to make it work?

Thank you.

@onlyforgithub,
The error could be because you are logged into multiple Google accounts or that you are opening the Script editor not from the spreadsheet itself (some people open it from the script.google.com directly.

Feel free to email me at moa29000@gmail.com for further help.

conanthecoder12

Sometimes this happens for some encoded emails. I am not really sure why it happens but what I do is try to get the html body using getBody()...

you

Yes, Not getting replies.

@moayadhani Please assist with your script, how labeled emails will come in spreadsheet automatically instead of manually clicking on Gmail Manager then Get Emails.2ndly can I receive unique emails with unique subject line which arrived first time in this lebeled.

Thanks in advance.

@kousiknaga

Hi,
Regarding the automatic extraction of Gmail emails, I have published a blog with simple steps that show how to do that. Here is the link:
https://codewondo.com/create_apps_script_triggers/

To extract the first email that arrives in the thread, you can replace line 21 to 27 with the following code:

var message = messages[0];
if (message.isUnread()){
  extractDetails(message);
  GmailApp.markMessageRead(message);
}

If you face a problem, please send me an email. My email is moa29000@gmail.com

hi @moayadhani.
i want to get email header in a label. I used the above code but don't know how to replace the code to get the subject in the label. Can you help me. Thank you
function getGmailEmails() {
var strtIdx = 0;
var threadsToRead = 5;
let threads;
do {
threads = GmailApp.getInboxThreads(strtIdx, threadsToRead);
for (var i = 0; i < threads.length; i++) {
let messages = threads[i].getMessages();
for (let j = 0; j < messages.length; j++) {
var message = messages[j];
extractDetails(message);
}
}
strtIdx += threadsToRead;
} while (threads.length == threadsToRead);
}

function extractDetails(message) {
var dateTime = message.getDate();
var subjectText = message.getSubject();
var senderDetails = message.getFrom();
var identificativo = message.getId();

var activeSheet = SpreadsheetApp.getActiveSpreadsheet().getActiveSheet();
activeSheet.appendRow([dateTime, senderDetails, subjectText, identificativo]);
}

Hi, I have a strange issue, the script runs once and imports the mails to Google sheets but if I delete the data in the sheet and run the script again it does not import any emails. I have tried to generate new emails and run it again but still no luck.

Any ideas I could do to fix this?

Hi @bkeneu,
Well, this seems to be an issue related to your maximum usage of Gmail emails read/write operations. Google has set daily quotas per users. You can check this from the link below:
https://developers.google.com/apps-script/guides/services/quotas

If you think this is not the problem, please send me an email over moa29000@gmail.com OR moayad@codewondo.com and I will help you out.

Best regards

I found it , there is a if statement to only extract messages if they are unread - sorry

Yes, I thought that by "generate new emails", you meant new encoming emails that are unread yet.
Anyways, I'm glad that you found a fix

Hi @moayadhani! Love your tutorial and appreciate your help in advance!

When I tried running the above (pasted below too) source code, I saw a box appear in the UI requesting for Label Name. When I provided the Label Name again, I see error messages that say Error resuming script execution and Script getGmailEmails experienced an error.

Can you please lmk what the source code should be so I can retrieve only email messages labeled General User Support?

Source Code

var ui = SpreadsheetApp.getUi();
function onOpen(e){

ui.createMenu("Gmail Manager").addItem("Get Emails by Label", "getGmailEmails").addToUi();

}

function getGmailEmails(){
var input = ui.prompt('Label Name', 'General User Support', Browser.Buttons.OK_CANCEL);

if (input.getSelectedButton() == ui.Button.CANCEL){
return;
}

var label = GmailApp.getUserLabelByName(input.getResponseText());
var threads = label.getThreads();

for(var i = threads.length - 1; i >=0; i--){
var messages = threads[i].getMessages();

for (var j = 0; j <messages.length; j++){
  var message = messages[j];
  if (message.isUnread()){
    extractDetails(message);
    GmailApp.markMessageRead(message);
  }
}
threads[i].removeLabel(label);

}

}

function extractDetails(message){
var dateTime = message.getDate();
var subjectText = message.getSubject();
var senderDetails = message.getFrom();
var bodyContents = message.getPlainBody();

var activeSheet = SpreadsheetApp.getActiveSpreadsheet().getActiveSheet();
activeSheet.appendRow([dateTime, senderDetails, subjectText, bodyContents]);
}

@mtram8
Hi! I am pleased you found this code helpful to you.

Regarding the issue you are facing, I guess the previous execution was not successful, and you ran the secod label extraction before the previous is done. That being said, it could be caused by other factors. Can you share with me a short screen recording of the problem and send over email at moa29000@gmail.com and cc moayad@codewondo.com

I will help you out with your issue