SUMPRODUCT Dynamic Help

Dears,

I need your help to finish my Sumproduct Formula and get it dynamic and not dependent of the number of rows or columns in the Sheet containing the Data source,

the formula is contained in the Sheet Overview 2017, in the table E43:S60,
This formula is searching for the sales or FCST based on several criterias (Brand, Format, botlle type, Month number and year,Sales or FCST)
If Sales, this is returning the formula to sheet SPT, if FCST, to the sheet SPT FCST,

For the first part of formula, to retrieve the sales, i have no issues and it is dynamic, but for the Second part, if I need FCST info, i need the formula to be equal to the number of row or columns contained in the sheet SPT FCST, which drastically reduce the dynamic use of my file,

Could you please help me in correcting it ? I am running out of ideas,

In attached the concerned file,

thanks in advance !

Stef