Subject: Error 195011 "Not authorized for this topic" when creating subscription for OFFER_ACTIVITY Hi everyone, I am attempting to create a notification subscription for the topic OFFER_ACTIVITY using the eBay Notification API endpoint: POST https://api.ebay.com/commerce/notification/v1/subscription However, when passing the seller's Authorization Code Grant User Access Token, I receive the following error response: { "errors": [ { "errorId": 195011, "domain": "API_NOTIFICATION", "category": "REQUEST", "message": "Not authorized for this topic." } ] } ### Request Details - Endpoint: POST https://api.ebay.com/commerce/notification/v1/subscription - Request Body: { "destinationId": "xxxxxxxxxxx", "payload": { "deliveryProtocol": "HTTPS", "format": "JSON", "schemaVersion": "1.0" }, "status": "ENABLED", "topicId": "OFFER_ACTIVITY" } ### Currently Authorized Scopes in My App: - https://api.ebay.com/oauth/api_scope - https://api.ebay.com/oauth/api_scope/sell.fulfillment - https://api.ebay.com/oauth/api_scope/sell.fulfillment.readonly - https://api.ebay.com/oauth/api_scope/sell.finances - https://api.ebay.com/oauth/api_scope/commerce.notification.subscription - https://api.ebay.com/oauth/api_scope/commerce.identity.readonly ### Context: When retrieving the available topics via GET https://api.ebay.com/commerce/notification/v1/topic , OFFER_ACTIVITY requires specific authorization scopes that do not seem to be covered by my current scope set. Could anyone clarify which specific OAuth scope(s) I need to request from the seller during user authorization to successfully subscribe to the OFFER_ACTIVITY topic? Thank you for your help!