Upsert Row by Key - DE Key

PUT https://{{et_subdomain}}.rest.marketingcloudapis.com/hub/v1/dataevents/key:key:{DE_External_Key}/rows/Email:example@example.com

https://developer.salesforce.com/docs/atlas.en-us.noversion.mc-apis.meta/mc-apis/putDataExtensionRowByKey.htm

Upserts a data extension row by primary key using Data Extension's External Key.

Request Body

{"values"=>{"LastLogin"=>"2013-05-23T14:32:00Z", "IsActive"=>true, "FirstName"=>"John", "FollowerCount"=>4, "LastName"=>"Smith"}}

RESPONSES

status: OK

{"keys":{"subscriberKey":"5c68f5c7f2380288ba735091"},"values":{"lastLogin":"2013-05-23T14:32:00Z","isActive":"True","firstName":"John","followerCount":"4","lastName":"Smith"}}