> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.goingbus.com/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# [GPT Plus]What do I do since I need the authentication number ?  How to Get the Authentication Code  3-6

| On the login screen in GPT, an error like the figure below occurs.

![](https://storage.crisp.chat/users/helpdesk/website/4dd72f801b528800/image_aadbgm.png)

# First, open your account. Momentum. The list of [subscriptions](https://goingbus.com/subscription) 

![](https://storage.crisp.chat/users/helpdesk/website/4dd72f801b528800/image_w05uvj.png)

# Click on Subscribe to get the verification code

![](https://storage.crisp.chat/users/helpdesk/website/4dd72f801b528800/image_kqs5s7.png)

# Wait for a moment to get the verification code, enter GPT and you can use it

||| What should I do if I don't receive the verification code
**In most cases, not being able to get the verification code is because you did not select “e-mail”.**  
No matter what prompt appears or how the page changes, please make sure to complete the **“e-mail”** verification first.  
If you do not see `xxxxxx@xxxxxx` (the account we provide), please follow the steps below: first click **“Try Other Methods”**, then select **“e-mail”** and complete the sending process.  
After that, please confirm that `xxxxxx@xxxxxx` (the account we provide) is displayed on the page. Then return to the subscription list and click **“Get Link”** again to see the verification code.
# 1.  Choose to try other ways

![](https://storage.crisp.chat/users/helpdesk/website/-/4/d/d/7/4dd72f801b528800/cc39fd307e2d2f03cd92ba51f8b9ec_1x10saj.png)

# 2. Select email verification

![](https://storage.crisp.chat/users/helpdesk/website/-/4/d/d/7/4dd72f801b528800/42672e76caba5fbcbd858f7a2da682_1nsxmck.png)

# 3. Obtain the verification again in the subscription after sending the verification
After completing the e-mail verification, **please first confirm that `xxxxxx@xxxxxx` (the account we provide) is displayed on the page**, then return to the subscription list and click “Get Link” to view the verification code.
![](https://storage.crisp.chat/users/helpdesk/website/-/4/d/d/7/4dd72f801b528800/86d8461236502c78b2cba740438a63_1lt52iz.png)