Hi Todd, "id": "${the_id_of_the_version_to_release}", 9*****5 value matched Bundle Version String in store. (Is that the correct item to send) {'errors': [{'id': '21*****************98', 'status': '409', 'code': 'ENTITY_ERROR.RELATIONSHIP.INVALID', 'title': 'The provided entity includes a relationship with an invalid value', 'detail': "There is no resource of type 'appStoreVersion' **with id '9*******5'",** 'source': {'pointer': '/data/relationships/appStoreVersion'}}]}`

repost above in plain text. (copy/paste OK in markdown editor) 9*****5 value matched Bundle Version String in store. (Is that the correct item to send) {'errors': [{'id': '21*****************98', 'status': '409', 'code': 'ENTITY_ERROR.RELATIONSHIP.INVALID', 'title': 'The provided entity includes a relationship with an invalid value', 'detail': "There is no resource of type 'appStoreVersion' with id '9*******5'", 'source': {'pointer': '/data/relationships/appStoreVersion'}}]}

@Todd G I think I was misunderstanding the_id_of_the_version_to_release was trying the "Bundle Version String" in Appstoreconnect WebGUI. I am going to try the ID filtered from https://api.appstoreconnect.apple.com/v1/apps/{app_id}/appStoreVersions I have another opportunity to try again in few days. -Mike

${the_id_of_the_version_to_release} retrieved from json output of https://api.appstoreconnect.apple.com/v1/apps/{apple_id}/appStoreVersions