Using SumIfs - can't get the syntax right!

[DaveEade]

So, I'm trying to get some sumifs working based on the values in a column and a row - not sure if it's possible, but anyway - here is what I'm looking at.
There is the data entry sheet
and then two sheets that look for the Resource / Project and date and returns the sum of the values where the match...

See attached photos - the colours show how the links are made.

 

[DaveEade]

Ignore me! Just realised I was trying to find the date 01/04/2024, but had added 04/01/2024 to the cell by mistake -s o it couldn't ( and wouldn't ) find that reference!