How to change amazon lex v2 runtime quotas

Here is how to request a service quota increase:

1. Sign in to the AWS Management Console and open the Service Quotas console at https://console.aws.amazon.com/servicequotas/home.
2. In the navigation pane, choose AWS services.
3. Choose an Amazon Lex service from the list, or type the name of the service in the search box.
4. Choose the limit from the list, or type the name of the service limit in the search box. Not all the limits can be increased or requested.
5. Click the button that says "Request Quota Increase"
6. For Change quota value, enter the new value. The new value must be greater than the current value.
7. Click the Request button.

You can also see pending or recently resolved requests from dashboard. For pending requests, choose the status of the request to open the request receipt. Initial status would be pending, once the status changes to Quota requested, you'll see the case number with AWS Support. Choose the case number to open the ticket for your request.

The documentation link which you mentioned, if you look at column "Adjustable" and "Self Service", if both are "Yes" then you can follow the steps as mentioned above else if it is Adjustable but not Self Service, then you'd need log a support case for same, mentioning why is that required, you may need to provide little more details about your use case.

Hope it helps.

Abhishek