Sender ID is a unique identifier that represents the origin of a message. It indicates who the message is being sent from this could be a business phone number, brand name, short code, or an individual user’s phone number, depending on the messaging platform. The Sender ID is what the recipient sees as the source of the message and helps establish trust, recognition, and accountability in communications.

Recipient ID is the unique identifier that represents the destination of a message. It defines who the message is being delivered to typically the end user’s phone number, device identifier, or a business account, based on the communication flow. This ensures that messages are correctly routed and securely delivered to the intended party.

Together, the Sender ID and Recipient ID clearly define the source and destination of every message within a messaging system, enabling accurate routing, reliable delivery, traceability, and effective monitoring of communication flows across the platform.