The code activity are not updated when project code is update

hi,
It is normal.
In most cases when a reference is calculated it must not be changed (because it is a reference !).
So if you change the project code, only new activities will take into account this new code.
It's almost the save with Type code, with one particuliar behavior : you can choose wether the reference is automatically recalculated on Type change. Then if you change the type, the reference is calculated with the new Type code. You must be aware that this will leave some blanks in numbering (previous reference is lost, and will never be reused).


Now, if you change project code and you want to update all references for activitities, go to the admin screen, you'll find the correspondong functionality !