# Lambda parameters for Amazon Kinesis Data Streams event source mappings
Parameters

All Lambda event source mappings share the same [CreateEventSourceMapping](https://docs.aws.amazon.com/lambda/latest/api/API_CreateEventSourceMapping.html) and [UpdateEventSourceMapping](https://docs.aws.amazon.com/lambda/latest/api/API_UpdateEventSourceMapping.html) API operations. However, only some of the parameters apply to Kinesis.


| Parameter | Required | Default | Notes | 
| --- | --- | --- | --- | 
|  [BatchSize](https://docs.aws.amazon.com/lambda/latest/api/API_CreateEventSourceMapping.html#lambda-CreateEventSourceMapping-request-BatchSize)  |  N  |  100  |  Maximum: 10,000  | 
|  [BisectBatchOnFunctionError](https://docs.aws.amazon.com/lambda/latest/api/API_CreateEventSourceMapping.html#lambda-CreateEventSourceMapping-request-BisectBatchOnFunctionError)  |  N  |  false  |  none | 
|  [DestinationConfig](https://docs.aws.amazon.com/lambda/latest/api/API_CreateEventSourceMapping.html#lambda-CreateEventSourceMapping-request-DestinationConfig)  |  N  | N/A |  Amazon SQS queue or Amazon SNS topic destination for discarded records. For more information, see [Configuring destinations for failed invocations](kinesis-on-failure-destination.md#kinesis-on-failure-destination-console).  | 
|  [Enabled](https://docs.aws.amazon.com/lambda/latest/api/API_CreateEventSourceMapping.html#lambda-CreateEventSourceMapping-request-Enabled)  |  N  |  true  |  none | 
|  [EventSourceArn](https://docs.aws.amazon.com/lambda/latest/api/API_CreateEventSourceMapping.html#lambda-CreateEventSourceMapping-request-EventSourceArn)  |  Y  | N/A |  ARN of the data stream or a stream consumer  | 
|  [FunctionName](https://docs.aws.amazon.com/lambda/latest/api/API_CreateEventSourceMapping.html#lambda-CreateEventSourceMapping-request-FunctionName)  |  Y  | N/A |  none | 
|  [FunctionResponseTypes](https://docs.aws.amazon.com/lambda/latest/api/API_CreateEventSourceMapping.html#lambda-CreateEventSourceMapping-request-FunctionResponseTypes)  |  N  |  N/A |  To let your function report specific failures in a batch, include the value `ReportBatchItemFailures` in `FunctionResponseTypes`. For more information, see [Configuring partial batch response with Kinesis Data Streams and Lambda](services-kinesis-batchfailurereporting.md).  | 
|  [MaximumBatchingWindowInSeconds](https://docs.aws.amazon.com/lambda/latest/api/API_CreateEventSourceMapping.html#lambda-CreateEventSourceMapping-request-MaximumBatchingWindowInSeconds)  |  N  |  0  |  none | 
|  [MaximumRecordAgeInSeconds](https://docs.aws.amazon.com/lambda/latest/api/API_CreateEventSourceMapping.html#lambda-CreateEventSourceMapping-request-MaximumRecordAgeInSeconds)  |  N  |  -1  |  -1 means infinite: Lambda doesn't discard records ([Kinesis Data Streams data retention settings](https://docs.aws.amazon.com/streams/latest/dev/kinesis-extended-retention.html) still apply) Minimum: -1 Maximum: 604,800  | 
|  [MaximumRetryAttempts](https://docs.aws.amazon.com/lambda/latest/api/API_CreateEventSourceMapping.html#lambda-CreateEventSourceMapping-request-MaximumRetryAttempts)  |  N  |  -1  |  -1 means infinite: failed records are retried until the record expires Minimum: -1 Maximum: 10,000  | 
|  [ParallelizationFactor](https://docs.aws.amazon.com/lambda/latest/api/API_CreateEventSourceMapping.html#lambda-CreateEventSourceMapping-request-ParallelizationFactor)  |  N  |  1  |  Maximum: 10  | 
|  [StartingPosition](https://docs.aws.amazon.com/lambda/latest/api/API_CreateEventSourceMapping.html#lambda-CreateEventSourceMapping-request-StartingPosition)  |  Y  |  N/A |  AT\$1TIMESTAMP, TRIM\$1HORIZON, or LATEST  | 
|  [StartingPositionTimestamp](https://docs.aws.amazon.com/lambda/latest/api/API_CreateEventSourceMapping.html#lambda-CreateEventSourceMapping-request-StartingPositionTimestamp)  |  N  |  N/A |  Only valid if StartingPosition is set to AT\$1TIMESTAMP. The time from which to start reading, in Unix time seconds  | 
|  [TumblingWindowInSeconds](https://docs.aws.amazon.com/lambda/latest/api/API_CreateEventSourceMapping.html#lambda-CreateEventSourceMapping-request-TumblingWindowInSeconds)  |  N  |  N/A |  Minimum: 0 Maximum: 900  |