Parse Error at Char(603): Malformed If statement (Expression #1)

[fagoagaf]

I need help in fixing an error I'm seeing. Can you provide guidance?

iif([Total Days at Integrator's Warehouse]<=30,
[Days at Integrator's Warehouse for Calc Period]*(0.XXX/366)*[Unit PO Material Price]*[Qty for CoC],
iif([Total Days at Integrator's Warehouse]>30 and [Total Days at Integrator's Warehouse]<181,
[Days at Integrator's Warehouse for Calc Period]*(0.XXX/366)*[Unit PO Material Price]*[Qty for CoC],
iif([Total Days at Integrator's Warehouse]>=181,
((([Days at Integrator's Warehouse for Calc Period]-[days for higher rate]*(0.XXX/366)*[Unit PO Material Price]*[Qty for CoC]+[days for higher rate]*(0.XXX/366)*[Unit PO Material Price]*[Qty for CoC]))),0))

[fagoagaf]

 Thank you so much for the help!!! Both of you really helped me solve something that was giving me issues.