: To build an app that interacts with eBay, you must create a developer account to obtain a unique App ID, Dev ID, and Cert ID.
: You can set up 2-step verification by selecting Use text under your account's "Sign in and security" settings to receive login codes via SMS. Ebay Application
If you are referring to the from a technical or developer perspective: : To build an app that interacts with
The provides multiple ways to manage your account and listings via text, including SMS notifications for account activity and text-based 2-step verification for enhanced security. Text Message Features Ebay Application
: A new AI Assistant is available in the messaging interface to help sellers generate quick, relevant text replies to common buyer questions. Developer & Application Information