diff --git a/api-v3/test/unit/asset-operational-relations-integrity.test.ts b/api-v3/test/unit/asset-operational-relations-integrity.test.ts
index 9e66d53..dbbf197 100644
--- a/api-v3/test/unit/asset-operational-relations-integrity.test.ts
+++ b/api-v3/test/unit/asset-operational-relations-integrity.test.ts
@@ -33,13 +33,15 @@ test('D5.3 API enforces active relation, exclusive pair and physical ancestry',
   assert.match(assets, /OPERATIONAL_ANCHOR_IN_USE/);
 });
 
-test('D5.3/F5 relation lifecycle stays historical and audited without making Empresa physical ownership', async () => {
+test('D5.3/F6.1 relation lifecycle stays historical and audited without making Empresa physical ownership', async () => {
   const service = await source('asset-master/asset-operational-relations.service.ts');
   assert.match(service, /INSERT INTO area_company_relations/);
   assert.match(service, /valid_until = CURRENT_TIMESTAMP/);
-  assert.match(service, /Ending an operator relation must never be blocked by existing Inventory/);
+  assert.match(service, /Ending an operator relation never moves, rewrites or blocks existing Inventory/);
+  assert.match(service, /operatorSnapshotPreserved:true/);
   assert.match(service, /retainedCompatibilitySnapshotCount: before\.assignedAssetCount/);
   assert.doesNotMatch(service, /AREA_COMPANY_RELATION_IN_USE/);
+  assert.doesNotMatch(service, /UPDATE assets asset[\s\S]*SET operator_company_id=/);
   assert.match(service, /ASSET_AREA_COMPANY_RELATION_CREATED/);
   assert.match(service, /ASSET_AREA_COMPANY_RELATION_ENDED/);
 });