# 2.3.9.3 Update Historic Volumes for Baseline Forecast

I do not seem to be seeing the 1st Forceast Year as a line item in my SYS01 Time Settings by week module. Could someone assist me with what the problem could be?

• Hi @PAmoak

Could you share the screenshot also?

Thanks

• Hello @PAmoak ,

If the issue is that you cannot find the line item, it could be because you need to create it.

If the issue is that you do not know how to get to the solution, @Misbah provided a response in this link - please find below through the use of OFFSET(1,-1,0) <> 0:

First let's try to understand what OFFSET does? It basically Pulls or Pushes the numbers across the timescale. There are three parameters that are needed in the Syntax

`OFFSET(x,n,z) where x is the source line item to offset`

`                               n is the offset value `

`                               z is fill value if the result is outside the timescale`

`Result matches the data format of x - meaning it can be number, boolean or anything else`.

`FORMULA: OFFSET(1,-1,0) = 0`

If you take a look at the left hand side of the formula `OFFSET(1,-1,0)` it basically throws an output of 1 in all the time periods except the first time period. That is because you are hard coding your first parameter to `1` and then you are asking Anaplan to Push it further by `1` period in the second parameter. Hence the first parameter which is 1 gets pushed to subsequent periods.

If you look at the overall formula now` OFFSET(1,-1,0) = 0 `it checks the condition and looks for a time period which has 0 in it and matches with that time period.

Now Let's take a look at Second parameter. Here the ask was to find out the first period of the timescale hence second parameter was kept  -1. If the ask is to find out first 3 periods of the timescale you can change the second parameter from -1 to -3 ( Its minus because we have to push the values to subsequent periods)

`Note:` First Parameter doesn't necessarily has to be 1, it can be any number apart from 0

Hope that helped!

Kind regards,

Bruno Rodriguez

• Hi @PAmoak

As Bruno also mentioned, it seems you don't have "1st forecast year" line item in your module. You'd need to create it in this module.

Thanks