Amazon Connect Lex Lambda Timeout

Question

For Amazon Connect chat sessions, I am having issue with Lex Lambda on Get User Input block. It always goes to ERROR if the lex execution time takes over 8000 milli seconds. Here are my test results:
12648 - ERROR
7499 - OK
9553 - ERROR
9218 - ERROR
7936 - OK
7446 - OK
8656 - ERROR

The Error happens even though lambda is providing valid fulfillment response after 8000 milliseconds. I do have language setting in Contact Flow correctly as some re:Post answers referred to.

I understand such limitation for voice calls. But for Text/Chat it doesn't make sense to have such hard time out. The setting x-amz-lex:text:start-timeout-ms doesn't work for these situations, not sure what it is for.

Anyone knows how to change this time out?

Thanks!

Accepted Answer

Hi,

I would suggest to read on options that me and another re-poster described here: https://repost.aws/questions/QUXz5ungWZQdGfoT956JT2bA/is-there-a-way-to-increase-aws-connect-module-invoke-aws-lambda-function-timeout

In summary:
* as it is not possible to extend the timeout of 8 seconds for invoking lambda functions associated with AW Connect, as also this guide shows in a screenshot: https://docs.aws.amazon.com/connect/latest/adminguide/invoke-lambda-function-block.html, you could try to decrease lambda execution with mechanisms such as Snapstart (if Java based) or Provisioned concurrency.

* For processing which may take more than 8 seconds, you can do your work asynchronously. For more details see the blog at https://aws.amazon.com/blogs/contact-center/use-asynchronous-lambda-functions-with-amazon-connect/

Hope it helps ;)

Amazon Connect Lex Lambda Timeout

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