Data definition
A data definition is a means to specify the data to be imported and defines the format, applicable validations, et cetera.
The data definition supports data validation by specifying the expected data types, helping to ensure accurate and consistent data input.
On Data definition level you can add a custom field to the data definition. When clicking Add custom field button a panel slides in from the right. Here, you can specify the field attributes.
* 
Custom fields can only be added for a:
Property
Rentable unit
Contracts
Contract party
Use the Filter... field to narrow down the field selection in order to find a specific field.
Click Export button to export the data definition in Excel format.
In addition to the data, the exported file will list the name of the user who exported the file and the date-time of export.
Click an element in the list to view its details (in a slide panel).