Lengthening cables for off-board clamping ammeters

Hi,
We are using your IOT-capable offboard 95% accuracy 4-channel AC ammeter board. Are there any issues with splicing in additional wire of the same gauge to lengthen the cable between the clamping sensor and the screw terminals on the PCB? For example, would we need to multiply amperage readings by a correction factor?
Thanks!

How much are you looking to extend the CT cables?