Setting Daily Resources Costs Afterwards

If you update daily cost "afterwards"
=> Real cost is automatically updated to new daily cost.
=> left cost is taken into account with new daily cost.
=> assigned cost is preserved at cost know when assignment has been defined.

It behavior is not this one please, give more information (print screen for instance)

As I previously explain, assign cost is preseved with cost defined when assignment was created.
This is normal and won't be changed (except as of ticket #2684, if cost was zero).

For real work, unfortunately your print screen dos not show costs on activity...

I did the following test :
Create new project P.
Create new resource R, with cost at 200€/day.
Allocate resource R to project P
add new activity A on project P.
Assign 3 days of work for resource R on activity A
Enter 1 real work day on march 1st, enter 1 real work day on april 1st, recalculate planning on may 1st.
This give expected result :


Then I change cost for resource R to 250€/day on march 15th.
Result is exactly as expected :
assigned = 600€ (**200)
real = 450€ (1*200+1+250)
left = 250 (1*250)