Most objections are not refusals; they are the prospect testing whether you understand their situation. "We already use X" is a question about what you do differently. "Not now" is a question about what changes if they wait.
The pattern is acknowledge, ask, then answer: agree the concern is reasonable, ask one question to find what is behind it, and only then respond. The list of real objections a team hears is also the best input to its positioning.