Who was Uddhava?

Uddhava was a great friend of Shri Krishna and his loving devotee. He was sent to Vrindavan by Shri Krishna with a message to the Gopis whose hearts always yearned to see Shri Krishna in their midst and yet lived in constant communion with him under all circumstances. Gopis thronged round Uddhava when he reached the place and most impatiently asked him questions about Shri Krishna.