You can use this optional parameter to specify a Lambda function version or alias name. If you specify a function version, the API uses the qualified function ARN to invoke a specific Lambda function. If you specify an alias name, the API uses the alias ARN to invoke the Lambda function version to which the alias points.

If you don't provide this parameter, then the API uses unqualified function ARN which results in invocation of the $LATEST version.

Qualifier is referenced in 2 repositories