Developer Documentation Library > Data Model > Frequently asked questions > I have used Metadata Model to Quantum to set up custom properties, but I can't see them when I look in MDM Explorer. Where are they and why can't I see them?
 
I have used Metadata Model to Quantum to set up custom properties, but I can't see them when I look in MDM Explorer. Where are they and why can't I see them?
In Data Model 2.5 and later, Metadata Model to Quantum and the Metadata Model to Quantum component write the card, column, and punch custom properties to the DataSourceProperties collections. This means that you can see them in MDM Explorer only when the same DataSource object is set as the current DataSource. For more information, see Viewing custom properties in MDM Explorer.
See also
Metadata Model to Quantum component
Metadata Model to Quantum
DataSourceProperties
Working with card and column definitions
Setting up card and column definitions using the Metadata Model to Quantum component
Frequently asked questions