Creating Department--Export-Import from one POD to another. Error Message Code: PER_MISSING_CLASS

Summary:

I am creating department using the Export Import feature from one POD to another for use in Oracle Project Financial Management Cloud. I am getting this error
Message Code: PER_MISSING_CLASS. Message Text: You need to add at least 1 classification to the NOVACORP_UK_CORPORATE_DEPT organization unit.

Content (please ensure you mask any confidential information):

Please see the detailed below

Business object: Department Organization Unit Classification. Status: Completed with errors. Status details: Review and report the errors for this object to product Global Human Resources.Detail Object: Organization Migration. Status: Completed with errors. Status Details: A total of 8 rows were processed. 8 rows of them failed and 0 rows completed with warnings.. Started: 10/20/25 1:01 AM. Ended: 10/20/25 1:02 AM.Row Identifier: 3FCDB22F84EF0582E0632263F00A6CB6,1951-01-01,4712-12-31. Status: Error. Message Code: PER_MISSING_CLASS. Message Text: You need to add at least 1 classification to the NOVACORP_UK_CORPORATE_DEPT organization unit.The data row that caused the exception exists in the PER_DEPARTMENT_ORG.csv file.The data row can be found in batch