Changes to Get subscriber by external ID

added the optional property issues to the response with the 400 status

added the optional property issues to the response with the 401 status

added the optional property issues to the response with the 404 status

added the optional property issues to the response with the 503 status

added the new undefined enum value to the subscriber/allOf[subschema #2]/activity/items/engagementQuality response property for the response status 200

added the optional property subscriber/allOf[#/components/schemas/Subscriber]/phoneCountry to the response with the 200 status

removed SubscriberEmailStats from the subscriber/allOf[subschema #2]/emailStats response property allOf list for the response status 200

added subschema #1 subschema #2 to the subscriber/allOf[subschema #2]/emailStats response property anyOf list for the response status 200

added the optional property retryable to the response with the 400 status

added the optional property retryable to the response with the 401 status

added the optional property retryable to the response with the 404 status

added the optional property retryable to the response with the 503 status

added the non-success response with the status 503

added the optional property subscriber/allOf[#/components/schemas/Subscriber]/timezone to the response with the 200 status

added the optional property code to the response with the 400 status

added the optional property code to the response with the 401 status

added the optional property code to the response with the 404 status

added the optional property subscriber/allOf[#/components/schemas/Subscriber]/unsubscribedAt to the response with the 200 status

added the optional property subscriber/allOf[subschema #2]/activity/items/smsErrorCode to the response with the 200 status

added the optional property subscriber/allOf[subschema #2]/activity/items/smsSegments to the response with the 200 status

added the optional property subscriber/allOf[subschema #2]/activity/items/smsSendId to the response with the 200 status

the response property success became optional for the status 400

the response property success became optional for the status 401

the response property success became optional for the status 404

the response property subscriber/allOf[#/components/schemas/Subscriber]/email became nullable for the status 200

added the optional property subscriber/allOf[#/components/schemas/Subscriber]/phone to the response with the 200 status

added the optional property subscriber/allOf[#/components/schemas/Subscriber]/smsStatus to the response with the 200 status

added the non-success response with the status 401

added the optional property subscriber/allOf[subschema #2]/notes to the response with the 200 status

added the new optional query request parameter includeMachineEngagement

added the optional property subscriber/allOf[subschema #2]/activity/items/classificationReasons to the response with the 200 status

added the optional property subscriber/allOf[subschema #2]/activity/items/engagementQuality to the response with the 200 status

added the optional property subscriber/allOf[subschema #2]/activity/items/machine to the response with the 200 status

endpoint added