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Q&A Why do I get "we've run into an issue" and error code caa70004 when starting Microsoft Teams?

I installed Teams on my desktop. Whenever I click it, this error message appears. Why? We're sorry—we've run into an issue. Error code - caa70004 There's a more permanent way to sign in to Mic...

0 answers  ·  posted 2y ago by TextKit‭  ·  last activity 2y ago by TextKit‭

Question microsoft-teams
#5: Post edited by user avatar TextKit‭ · 2021-11-27T14:45:31Z (over 2 years ago)
  • I installed Teams on my desktop. Whenever I click it, this error message appears. Why?
  • > We're sorry—we've run into an issue.
  • >
  • > Error code - caa70004
  • > There's a more permanent way to sign in to Microsoft Teams. If you're having trouble completing the process, talk to your IT admin.
  • As a stopgap measure, I can open my Outlook For Business, find ANY email from someone else containing a Teams link, and click it. Then Teams opens successfully. However, I want to just click on Teams on desktop to load Teams, sign in, and call.
  • I installed Teams on my desktop. Whenever I click it, this error message appears. Why?
  • > We're sorry—we've run into an issue.
  • >
  • > Error code - caa70004
  • > There's a more permanent way to sign in to Microsoft Teams. If you're having trouble completing the process, talk to your IT admin.
  • As a stopgap measure, I can open my Outlook For Business, find ANY email from someone else containing a Teams link, and click it. Then Teams opens successfully. However, I want to just click on Teams on desktop to load Teams, sign in, and call.
  • ## My neighbor apprised me how to solve this glitch, but he can't explain it.
  • Just [clear cache as outlined by Veejay RC](https://answers.microsoft.com/en-us/msteams/forum/all/clear-cache/0810ce4f-af14-4269-b01f-adc89a0af4c4). But neighbor doesn't know why clearing cache solves. Then my glitch disappeared! Yay!
  • > To clear your Teams desktop app cache:
  • > 1\. Sign out on Teams > Quit Microsoft Teams by right clicking the icon and select Quit.
  • > 2\. On your keyboard, Hold Windows key and Press R
  • > 3\. Cut and paste %appdata%\\Microsoft\\Teams in the RUN then OK.
  • > 4\. Delete the contents of the entire folder.
  • > 5\. Restart Device > Restart Microsoft Teams > Sign In.
#4: Post edited by user avatar Canina‭ · 2021-11-25T18:07:09Z (over 2 years ago)
  • I installed Teams on my desktop. Whenever I click it, this error message appears. Why?
  • > We're sorry—we've run into an issue.
  • >
  • > Error code - caa70004
  • > There's a more permanent way to sign in to Microsoft Teams. If you're having trouble completing the process, talk to your IT admin.
  • Here's my stopgap that wastes TOO MUCH time. I must open my Outlook For Business, **_find ANY email from someone else containing a Teams link_** , and click it. Then Teams opens successfully.
  • This wastes time because if I am merely opening Teams to call my Contact to chat **like Skype**, I DON'T NEED any Teams links or access my Outlook For Business! **Like Skype**, I SHOULD need just click on Teams on desktop to load Teams, sign in, and call.
  • I installed Teams on my desktop. Whenever I click it, this error message appears. Why?
  • > We're sorry—we've run into an issue.
  • >
  • > Error code - caa70004
  • > There's a more permanent way to sign in to Microsoft Teams. If you're having trouble completing the process, talk to your IT admin.
  • As a stopgap measure, I can open my Outlook For Business, find ANY email from someone else containing a Teams link, and click it. Then Teams opens successfully. However, I want to just click on Teams on desktop to load Teams, sign in, and call.
#3: Post edited by user avatar Canina‭ · 2021-11-25T08:11:41Z (over 2 years ago)
  • There’s a more permanent way to sign in to Microsoft Teams. If you’re having trouble completing the process, talk to your IT admin.
  • Why do I get "we've run into an issue" and error code caa70004 when starting Microsoft Teams?
  • I installed Teams on my desktop. When ever I click it, this error message springs up. Why?
  • Here's my stopgap that wastes TOO MUCH time. I must open my Outlook For Business, **_find ANY email from someone else containing a Teams link_** , and click it. Then Teams opens successfully.
  • This wastes time because if I am merely opening Teams to call my Contact to chat **like Skype**, I DON'T NEED any Teams links or access my Outlook For Business! **Like Skype**, I SHOULD need just click on Teams on desktop to load Teams, sign in, and call.
  • ![](https://i.imgur.com/XJvhXbh.png)
  • I installed Teams on my desktop. Whenever I click it, this error message appears. Why?
  • > We're sorry—we've run into an issue.
  • >
  • > Error code - caa70004
  • > There's a more permanent way to sign in to Microsoft Teams. If you're having trouble completing the process, talk to your IT admin.
  • Here's my stopgap that wastes TOO MUCH time. I must open my Outlook For Business, **_find ANY email from someone else containing a Teams link_** , and click it. Then Teams opens successfully.
  • This wastes time because if I am merely opening Teams to call my Contact to chat **like Skype**, I DON'T NEED any Teams links or access my Outlook For Business! **Like Skype**, I SHOULD need just click on Teams on desktop to load Teams, sign in, and call.
#2: Post edited by user avatar TextKit‭ · 2021-11-25T07:27:42Z (over 2 years ago)
  • I installed Teams on my desktop. When ever I click it, this error message springs up. Why?
  • Here's my stopgap that wastes TOO MUCH time. I must open my Outlook For Business, **_find ANY email from someone else containing a Teams link_** , and click it. Then Teams opens successfully.
  • This wastes time because if I am merely opening Teams to call my Contact to chat like Skype, I DON'T NEED any Teams links or access my Outlook For Business! Like Skype, I SHOULD need just click on Teams on desktop to load Teams, sign in, and call.
  • ![](https://i.imgur.com/XJvhXbh.png)
  • I installed Teams on my desktop. When ever I click it, this error message springs up. Why?
  • Here's my stopgap that wastes TOO MUCH time. I must open my Outlook For Business, **_find ANY email from someone else containing a Teams link_** , and click it. Then Teams opens successfully.
  • This wastes time because if I am merely opening Teams to call my Contact to chat **like Skype**, I DON'T NEED any Teams links or access my Outlook For Business! **Like Skype**, I SHOULD need just click on Teams on desktop to load Teams, sign in, and call.
  • ![](https://i.imgur.com/XJvhXbh.png)
#1: Initial revision by user avatar TextKit‭ · 2021-11-25T07:26:42Z (over 2 years ago)
There’s a more permanent way to sign in to Microsoft Teams. If you’re having trouble completing the process, talk to your IT admin.
I installed Teams on my desktop. When ever I click it, this error message springs up. Why?

Here's my stopgap that wastes TOO MUCH time. I must open my Outlook For Business, **_find ANY email from someone else containing a Teams link_** , and click it. Then Teams opens successfully. 

This wastes time because if I am merely opening Teams to call my Contact to chat like Skype, I DON'T NEED any Teams links or access my Outlook For Business! Like Skype, I SHOULD need just click on Teams on desktop to load Teams, sign in, and call.

![](https://i.imgur.com/XJvhXbh.png)