To set/change a contract definition of an employee, go to Configuration - Employees - Tab System [New/Edit] and click the button correspondent to field Contract. A new window opens:
Setting a contract from Tab System - New/Edit Employee Window in Astrow Web
Click the button to set a contract.
Adding a contract from Tab System - New/Edit Employee Window in Astrow Web
Use the calendar (double-click on the Start date field) to set the start date of the contract. You can search through previous month or next month . The button can help you easily select a date desired, if not the current year or month.
Navigation calendar option in Astrow Web
Next click the picker to choose a contract from the ones defined.
A new window opens containing a list of contract definitions defined in Astrow. Select a contract and click Select.
The new contract is added. Click Ok to link the contract to the employee.
To delete a contract history record, go to an individual employee definition in Configuration - Employees - Tab System [Edit],click the button correspondent to field Contract, select the recordsand click .
Please note that you won't delete a contract definition, but a contract history record from an employee definition. You are not advised to delete contract definitions in use!
You can also use the search field to search a contract by name.
correspondent to field Contract. A new window opens:
to set a contract.
or next month 
. The button 
can help you easily select a date desired, if not the current year or month.
.
to search a contract by name.