Question about Yahoo YHT-630 System

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Error Code -40402


I've just recently uploaded Messenger 9.0 to my laptop (just moved to Dubai) and I am trying to add new contact details, specifically mobile numbers as I wish to be able to SMS people from my laptop, however, after I enter the mobile number and hit Enter, the following message comes up......

"The last Address Book Operation did not succeed due to a server error (Error Code -40402)".

Can some genius out there please help me.


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  • 12 more comments 
  • rimaam Mar 04, 2009

    when i try to add messenger details (person's name) on yahoo messenger 9.0, it does not and i get error code 40402

  • yahooaddict Mar 09, 2009

    I try to add nick name of one of my yahoo messenger friend, however I get this error everytime I try doing that

    "The last Addres Book operation did not succeed due to a server error. (Error Code: -40402)"

    Is there a bug in the new version of yahoo messenger or problem with the ID of my friend?


  • Anonymous Mar 09, 2009


  • Anonymous Mar 09, 2009

    Error Code -40402

  • hippie2mars Mar 10, 2009

    I'm trying to edit the contact name and get the same error. Very frustrating.

  • Anonymous Mar 11, 2009

    the same messege come to me after i try to delete only one person i dont like him in my contact list how can i fix it

  • Anonymous Mar 11, 2009

    Error Code -40402, wit changing contact details.............

  • sheffalipand Mar 13, 2009

    "The last Address Book Operation did not succeed due to a server error (Error Code -40402)".

    the same messege come to me after i try to delete only one person i dont like him in my contact list how can i fix it

  • Anonymous Mar 14, 2009

    Same error appears to me.. please.... I have to keep track of all the girls i chat with.. realy important u see

  • Anonymous Mar 14, 2009

    Im also having same problem.

  • Anonymous Mar 16, 2009

    problema mea este aceea ca in loc sa imi apara nickname imi apar id`urile chiar daca acolo am dat nickname or first and last enerveaza foarte rog sa ma ajutati(mess 9)

  • m_creative_k Mar 16, 2009

    i m change my contect detail and i wany to show my nick clourefull to other friends but here come this messege(the last address book opreation did not succeed due to a server error.(code: 0 40402

  • vennelakssv Mar 25, 2009

    if i change the name also still showing error code how to solve this problem, if install the new yahoo messanger its shows this error code 40402

  • Anonymous Mar 29, 2009

    i have the same problem ...why yahoo make this wrong how i can remember my friend details ....what i can do



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Well, the Yahoo Messenger 9 doesn't let you change the contact details.

Use the following link, and if you edit your address book in your yahoo mail account, the yahoo messenger takes over the nickname from the address book in the e-Mail account...

I hope this solves the problem


Posted on Mar 16, 2009


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Related Questions:

1 Answer

How can i fix this error 40402 i my yahoo messenger box

Clear your Yahoo Messenger cache in Windows If you are seeing error -40402, your contacts cannot see your display image, or you cannot see there's. We've go help for you
Learn how to clear your Yahoo Messenger cache to resolve a variety of issues:

  • "An error occurred while trying to access the 'SocialView' plug-in."
  • "The last Address Book operation did not succeed due to a server error. (error code: -40402)"
  • Your contacts can't see your avatar or display image - the picture appearing next to your name in message windows, or your contact list.
  • You can't see your contacts' avatars or display images.
Note: These steps apply to Windows XP, Windows Vista, Windows 7, and Windows 8; including 32-bit and 64-bit versions.
Clear your Yahoo Messenger cache
  1. In the notification area located next to the clock at the bottom-right corner of your screen, right-click the Yahoo Messenger smiley icon, then select Exit.
    • Note: Windows 7 and Windows 8 users may have their "Messenger smiley" icon hidden in the notification area; if so, move your cursor over the up arrow in the notification area to display the hidden icons, right-click the Messenger smiley icon, then select Exit.
  2. On your keyboard, press the key combination Windows + R.
  3. Type cmdand press Enter.
  4. Copy one line at a time from the list of command prompts below, then right-click within the Command Prompt window to paste the command.
    • After pasting each command, press Enter on your keyboard.
Note: If you receive the "The system cannot find the file specified," continue with the next command. These errors are harmless.
rd "%AppData%\Yahoo!\" /s /q
rd "%ProgramFiles%\Yahoo!\Messenger\Cache\" /s /q
rd "%ProgramFiles(x86)%\Yahoo!\Messenger\Cache\" /s /q
rd "%LocalAppData%\VirtualStore\Program Files\Yahoo!\Messenger\Cache" /s /q
rd "%LocalAppData%\VirtualStore\Program Files (x86)\Yahoo!\Messenger\Cache" /s /q
  1. Click the X button to close the Command Prompt.
If you get an "access is denied" error follow this process: Substitute this for step 3 above - Start ' Programs (or All Programs) ' Accessories.Make sure to right-click Command Prompt and select Run as Administrator, and then continue with step 4 above.
  1. Restart Yahoo Messenger.

Jul 30, 2014 | Yahoo Messenger

1 Answer

Want too delate a name from yahoo address book/error code 40402

This is a yahoo server error code
It can happen if you try and try and amend contacts from your friends list before your address book
Go to yahoo mail page > contacts > address book >check box next to contact to be deleted > delete

Open Messenger.
Right click on contacts avatar > delete

May 03, 2010 | Microsoft Windows 98 for PC

1 Answer

Error code 40402

[Solution # 1]
You will need to go to your Yahoo! Email Account and delete the contact's name there first.

1. Click Contacts from in the toolboxt to open.
2. Go to the contact you wish to remove and click the box next to it.
3. Go to the top of the list and click the Delete button.

Go to Messenger. When your list of Contacts opens, right click next to the name you wish to remove and select Delete from the drop down menu. The contact will be removed here also.
Error Code 40402 pops up when trying to remove a name while in your Yahoo Instant Messenger list first.

[Solution # 2]
Quit the program, then delete the contents of the “Cache”-folder located here:
c:/program files/Yahoo/Messenger/Cache

That usually solves a lot of problems, that occur all of a sudden. Try that and see if it works

[Solution # 3]
most probably a registry error - if you do not have a registry cleaner try downloading the free version of ccleaner from filehippo
once its downloaded select 'registry' from toolbar on left hand side and run 'scan for issues' followed by 'fix selected errors' if errors are detected
use microsoft 'one care' for further check

Hope they could help you
Good luck

Mar 30, 2009 | Yahoo Messenger

1 Answer

When i try to write something into "contact details" i receive the following error message : The last Address Book operation did not succeed due to a server error (Error Code: -40402).

If you are trying to delete a contact, delete them from your email address book first. This error usually comes up when you try to delete a contact from messenger first.

Mar 23, 2009 | Yahoo Messenger

1 Answer

I try to delete address book entry and get message 40402 and can't delete. my friends say they can't get thru to message me.

0402 is a yahoo server error code and is triggered when you do something out of sequence - try editing your contacts details in your address book before editing messenger contact information

Mar 17, 2009 | Yahoo Messenger

2 Answers

Error code 40402

if your trying to edit contacts in yahoo/messenger you will get error message 40402 - you have to edit them in yahoo mail address book first

Mar 11, 2009 | Yahoo Messenger

2 Answers

Error code 999 and error code 40402

how to remove the error code 40402

Mar 06, 2009 | Yahoo Messenger

7 Answers

Yahoo Messenger List/Address Book

I have since found out that you have to actually go into your contacts under yahoo mail and delete them from that list, then it deletes them from your messenger. Found this solution on another website. Hope this helps anyone else who is having that problem.

Feb 27, 2009 | Yahoo Messenger

2 Answers

Yahoo messenger list

This looks to be a problem with Yahoo itself.
Try writing to yahoo technical team.
Link as below.

Feb 27, 2009 | Yahoo Messenger

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