Using the 'Derived from field' and 'Derived field' attributes
The Derived from field attribute can be used to link a free field of the Move lines business object to a field of another business object. Refer to the following example on using the Derived from field and Derived field attributes.
Example
In Moves , you want to add some extra information to the Move lines - personnel business object, for example two fields containing the current and the future fax number of the person that is going to move. This fax number data is available in Personnel .
Procedure
1. Go to Field definer and select the Move lines business object.
2. Set the business object to Under construction.
3. At Details > Fields, select one of the unused free fields of Move lines set it to In use and select the Derived field type in the Field type field.
4. Select a reference to a business object from the dialog box in Derived from field, for example PersonRef.
5. Select a relevant field of this business object from the dialog box in Derived field. For example FreeString 23, representing a person’s fax number.
6. Give the free field of the move line a relevant name, for example Current fax number.
7. Repeat steps 3-5, only this time, select another unused free field of the Move lines business object and select the Derive and restore field type in the Field type field.
8. Give the free field a relevant name, for example New fax number.
9. Set the Move lines business object back to Completed.
10. In Layouts , make sure that the configured free fields are visible on the relevant Move lines layout.
Tip | For more information on adding fields to a layout, see the Layouts and TSIs documentation. |
Now that the move is implemented in Moves , the New fax number field is automatically populated in the move line when a person is selected. It is also used to update the Fax field in Personnel .
For general information on adding field types to free fields, see
Modifying the field type.