Backcourt or not?

[Wiggins]

I had this situation come up in a game last week. Team A was inbounding the ball at half court with no pressure. A1 wis inbounding to A2. A2 was standing in the frontcourt very near the backcourt line. A1 tossed the ball to A2. A2 did not catch the ball. A2 batted the ball to the floor in the backcourt. I did not call a back court violation. A's coach of course thought it was a good no call on the grounds that it all three points must be in front court location. However, B's coach stated that as soon as A2 touched the ball it was in front court location since A2 was standing in the front court and did not have a prior dribble in the backcourt. Did I make the correct call? I have asked several officials and recieved different interpretations.