UnknownError When creating lamba function

Question

Hi all 
I got the UnknownError alert when creating lambda function.
My console log like this:
awsc-head.js:2    
       POST https://lambda.us-east-1.amazonaws.com/2015-03-31/functions 403 (Forbidden)

Request URL:
        https://lambda.us-east-1.amazonaws.com/2015-03-31/functions
Request Method:
        GET
Status Code:
       403 Forbidden

I am using root account and I also tried to switch to another different region but It still not resolve issue.
Appreciate anyone can help me
Thankss

Riku_Kobayashi · Answer

Hello.

Is it possible that it is restricted by AWS Organizations SCP or something?  
If there are no restrictions in SCP, there may be a problem with your account.

AWS may occasionally limit AWS services based on account usage.  
Therefore, please contact AWS Support by opening a case under "Account and billing".  
https://docs.aws.amazon.com/awssupport/latest/user/case-management.html

Volodymyr · Answer

I am experiencing the same issue. Yesterday my lamdas worked and today they return 500 internal server error. When I go to AWS console to lambda functions dashboard I see "UknownError". In the network tab I see 403 response to functions endpoint.
![Enter image description here](/media/postImages/original/IMVUpQNLtxT8OhSS1Kg_Oi9w)

"UnknownError" guys, seriously? How to debug this single-word error without paid plan when I can't ask support about it?
My only guesses is that my root account doesn't have MFA. I'll try to set it.

UnknownError When creating lamba function

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