Two T4's from different provinces. CPP is maxed out on ON, and I only have CPP2 on AB T4 - Turbotax gives an error

[RobBee123]

I have two T4's - one from Ontario and one from Alberta.

I am assuming that I maxed out on CPP (Box 16) as I have CPP2 (Box 16A)  to enter for Ontario, and Alberta, but no CPP for Alberta.

Turbotax will not allow me to save the Alberta T4 without a value for the Alberta CPP