Why am I geeting the "Error in expression" message?

[brunolelli87]

Hello guys,

I'm working with the following expression and I believe it's correct, and providing the correct value for me, but Qlikview is saying there is an error in expression.

What am I doing wrong?

Thanks for your assistance,
Best regards

[brunolelli87]

Hello,

This is what I'm expecting to have as a result... A list, with the expression mentioned below, with the same values for 100 dates, 

And after using your expression, this is what I got:

[sunny_talwar · Accepted solution]

May be you need this

Sum(TOTAL LOPP)