Hi @Wout ,
If you are referring to the “Work assignments” in work tasks, dates are fetched from the respective work task. (Planned start from WT to Allocated start in assignment and similarly Planned finish to Allocated finish). The same will be fetched to Work order as well. In this case earliest planned start and latest planned finish will be fetched to work order from all the work tasks.
If you are referring to something else, kindly revert back and much better if you can attach a screen shot of the relevant windows so that we can provide further assistance.
Best regards,
Supun Ekanayake.