Thanks for your help! I did it in another way, it worked for me.
I created a process in Order BO -
ENTER NEW QueryParametersObject WITH QueryParametersObject.Category=Order_Information.Category
PICK ONE OR MORE FROM Supplier WHERE Supplier.Category=QueryParametersObject.Category
So as a result of process I have a list box of Supplier of chosen category/ies.
I am glad I managed to do it in AwareIm.
Now the problem is how to make this Order form appear only in selected/picked up supplier's accounts?
I think for that:
- In Supplier account a menu link to query must be created (Rule - FIND Order WHERE Order.State='Estimation')
- The process above must contain State=Estimation
- In Order BO there must be a rule -
IF State=Estimation
PROTECT Order FROM ALL EXCEPT Administrator,System,SuppliersSelected
The last word SuppliersSelected I think is not correct and wont work, So how should it be written?