Creating a location group copied from another CWMS instance fails with Cannot insert NULL error

Inserting the following fails on CWBI-dev, using /cwms-data/location/group endpoint:

{
	"office-id": "SPK",
	"id": "Tulare",
	"location-category": 
	{
		"office-id": "SPK",
		"id": "Basin"
	},
	"description": "Tulare Basin",
	"assigned-locations": 
	[
		{"location-id": "Isabella Dam",	"office-id": "SPK", "attribute": 0},
		{"location-id": "Pine Flat Dam", "office-id": "SPK", "attribute": 1},
		{"location-id": "Success Dam", "office-id": "SPK", "attribute": 2},
		{"location-id": "Terminus Dam", "office-id": "SPK", "attribute": 3},
		{"location-id": "Lake Isabella-Pool West", "office-id": "SPK"},
		{"location-id": "Lake Isabella", "office-id": "SPK"},
		{"location-id": "Lake Isabella-PC05", "office-id": "SPK"},
		{"location-id": "Lake Isabella-PC06", "office-id": "SPK"},
		{"location-id": "Lake Isabella-PC09", "office-id": "SPK"}
	]
}

Error:

26-Mar-2026 18:20:36.210 WARNING [http-nio-7000-exec-673] cwms.cda.ApiServlet.lambda$init$8 error on request[58a2d0e3-8a9f-4833-816d-b19ef6c2b821]: /cwms-data/location/group 
warn 
		at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:83) 
		at oracle.jdbc.driver.T4CTTIoer11.processError(T4CTTIoer11.java:509) 
		at oracle.jdbc.driver.T4CTTIoer11.processError(T4CTTIoer11.java:461) 
		at oracle.jdbc.driver.T4C8Oall.processError(T4C8Oall.java:1104) 
	Caused by: Error : 1400, Position : 0, Sql = BEGIN "CWMS_20"."CWMS_LOC"."ASSIGN_LOC_GROUPS3" (:1 , :2 , :3 , :4 ) ; END;, OriginalSql = { call "CWMS_20"."CWMS_LOC"."ASSIGN_LOC_GROUPS3" (?, ?, ?, ?) }, Error Msg = ORA-01400: cannot insert NULL into ("CWMS_20"."AT_LOC_GROUP_ASSIGNMENT"."LOCATION_CODE") 
error 
		at oracle.jdbc.driver.T4CTTIoer11.processError(T4CTTIoer11.java:513) 

This location data was taken from the T7, so I don't know what is missing.