Objective : We want to be able to validate that data matches some requirements. We would like to to perform this data validation by adding a JSON schema in Mongo (such as it is described here : https://docs.mongodb.com/manual/core/schema-validation/). Problem is that current implementation of the current Mongo DB Kafka Sink connector does not implement the required elements to benefit from features brought by this KIP : https://cwiki.apache.org/confluence/display/KAFKA/KIP-610%3A+Error+Reporting+in+Sink+Connectors So if we define such a validation on Mongo, if a message has a value that does not match the definition, it would not go in the dead letter queue, and the connector would "die". We would like to enhance the current implementation of the Mongo Sink connector to benefit from it.