There is a record size limit of 400KB which can’t be increased. It includes item size and its local secondary indexes. This seems to cause the error I am facing
ERROR rasa.core.tracker_store - Error happened when trying to save conversation tracker to ‘DynamoTrackerStore’. Falling back to use the ‘InMemoryTrackerStore’. Please investigate the following error: An error occurred (ValidationException) when calling the PutItem operation: Item size has exceeded the maximum allowed size.