I have 2 tables:
SCI_Control (Master)
-Control
-Periodicidad
SCI_Evidencia_Control(Detail).
-Control
-....
Periodicidad (with formula pointing to column Periodicidad of Master)
I want to do "join" (both have column "Control"), and the table SCI_Evidencia_Control create a column with the data of column "Periodicidad" of Master.
Looking at your screenshot, you already have a rowlink column that is pointing to the Control table. As that be the case, you can use the following formula: =[Control][Periodicidad]
Or if you choose to use the FINDROW formula, it would look like: =FINDROW(SCI_Control, "SCI_Control[Control]=[Control]")[Periodicidad]
They both would give the same result. Let us know if that helps!
Let us know if that works. I think the FINDROW formula may need another column since what I wrote in my initial reply points to the row only (and not a column to match). So it may look something like: