Advance Trade Api Historical Data

When gathering historical data from the Advance Trading Api (BETA) using “get product candles” there is no way of seeing the initial listing date. I would enjoy this parameter as it will save me on time and Coinbase money. So a win for everyone.

This would be amazing. Right now I have to “brute-force” myself to find the initial date.

this is for a dev to see: after thinking about this more copying kraken ways of doing trade data would be a very nice touch to the product candles request.