Hi all and thanks in advance.
I just want to lookup an amount from one module to another one. However, they have different dimensions, so, I created a unique code to work as link between those Modules (it is a string type).
How can I perform the Lookup or Sum using this unique code? I mean, I try lots of ways, and it is still not working. It should not be that hard. Right?

Thanks in advance!!
Any advice @einas.ibrahim?