In the modeler tool, set the to-many relationship Delete Rule to be "Nullify" for each relationship the object appears in.
See CayenneModeler Guide -> Modeling Object Layer -> Delete Rules
for more information and more options.
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In the modeler tool, set the to-many relationship Delete Rule to be "Nullify" for each relationship the object appears in.
See CayenneModeler Guide -> Modeling Object Layer -> Delete Rules for more information and more options.