Having this error, can you please help me?
The following error occurred when importing document: BookInfo.xlsx com.mendix.systemwideinterfaces.core.DataValidationRuntimeException -
T V L N SAMHIGNA
It mostly means that,
It means that you're trying to set an attribute in domain entity to a value that's not unique. In other words: there's already a attribute with the same ID.
Hope it helps!