I also tried to delete the documents from cosmos db via Data Flow. but when I am selecting allow delete and running the dataflow its throwing error called 'Key column' property should be mapped for delete and update operations means need to select key column but that option is not available when we select Allow Delete this option is available on SQL database.

**I tried to delete the documents from cosmos db via Data Flow. but when I am selecting allow delete and running the dataflow its throwing error called 'Key column' property should be mapped for delete and update operations** means need to select key column but that option is not available when we select Allow Delete this option is available on SQL database.

here Op need this feature to delete cosmos db. docs from azure data factory.

**reference thread**:
https://stackoverflow.com/questions/76615098/how-to-delete-json-files-in-a-cosmos-db-for-no-sql-using-mapping-dataflow-in-dat