Error creating CUDOS Dashboard using CloudFormation (AWSCURInitializer )

Question

I'm following the steps provided from this [AWS Workshop](https://catalog.us-east-1.prod.workshops.aws/v2/workshops/fd889151-38aa-4fe2-a29d-d5fa557197bb/en-US/prerequisites) to create a **Cudos Dashboard** for cost reporting.

When I get to step "**Prepare CUR & Athena Integration**" and attempt to create a new stack using CloudFormation I get the following error on the AWSCURInitializer event:

`Resource handler returned message: "Specified ReservedConcurrentExecutions for function decreases account's UnreservedConcurrentExecution below its minimum value of [50]. (Service: Lambda, Status Code: 400, Request ID: a7a45878-caca-4e00-9df4-026caea7926a, Extended Request ID: null)" (RequestToken: 00c6a110-6f9b-2435-0682-7da69eaf96f2, HandlerErrorCode: InvalidRequest)`

I think the key takeway from the erorr is this: *Specified ReservedConcurrentExecutions for function decreases account's UnreservedConcurrentExecution below its minimum value of 50*

Anyone familiar with this error and know how to get around it? Thanks!

Accepted Answer

You're hitting your accounts service quota for concurrent lambda executions. You can increase the quota from Service Quotas > AWS services > AWS Lambda > Concurrent executions

Here is some background what this is about 
* https://aws.amazon.com/blogs/compute/managing-aws-lambda-function-concurrency/
* https://docs.aws.amazon.com/lambda/latest/operatorguide/reserved-concurrency.html
* https://docs.aws.amazon.com/lambda/latest/dg/invocation-scaling.html

Error creating CUDOS Dashboard using CloudFormation (AWSCURInitializer )

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