Hi sir Sastry.
Im trying to get the previous data of the ifrequired field.
every line has a designated date.
Example.
September 1 - 0.0
September 2 - 0.0
September 3 - 0.00
September 4 - 0.00
September 5 - 0.00
September 6 -2613.56
September 7 - 0.00
On september 7 i want to use the value of 2613.56(sept6) in a formula in the line. thats why i try to use the previous function but an error appears