diff --git a/ruoyi-admin/src/main/resources/mapper/algorithm/WmsAlgorithmMapper.xml b/ruoyi-admin/src/main/resources/mapper/algorithm/WmsAlgorithmMapper.xml
index 8dacfa8..cf9a878 100644
--- a/ruoyi-admin/src/main/resources/mapper/algorithm/WmsAlgorithmMapper.xml
+++ b/ruoyi-admin/src/main/resources/mapper/algorithm/WmsAlgorithmMapper.xml
@@ -134,6 +134,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
         update alg.tidy_workflow
         set status = 'COMPLETED', completed_at = SYSUTCDATETIME(), updated_at = SYSUTCDATETIME()
         where workflow_id = #{workflowId}
+          and status not in ('COMPLETED', 'CANCELLED_RECONCILED')
           and not exists (select 1 from alg.tidy_step where workflow_id = #{workflowId} and status <> 'COMPLETED')
     </update>
 
@@ -146,7 +147,8 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
     <update id="pauseTidyWorkflow">
         update alg.tidy_workflow
         set status = 'PAUSED_RECOVERY', status_reason = #{statusReason}, updated_at = SYSUTCDATETIME()
-        where workflow_id = #{workflowId} and status not in ('COMPLETED', 'CANCELLED_RECONCILED')
+        where workflow_id = #{workflowId}
+          and status not in ('PAUSED_RECOVERY', 'COMPLETED', 'CANCELLED_RECONCILED')
     </update>
 
     <update id="pauseTidyStep">
diff --git a/ruoyi-admin/src/test/java/com/ruoyi/algorithm/wms/WmsAlgorithmMapperWorkflowSqlTest.java b/ruoyi-admin/src/test/java/com/ruoyi/algorithm/wms/WmsAlgorithmMapperWorkflowSqlTest.java
index f390cb9..5bb4d07 100644
--- a/ruoyi-admin/src/test/java/com/ruoyi/algorithm/wms/WmsAlgorithmMapperWorkflowSqlTest.java
+++ b/ruoyi-admin/src/test/java/com/ruoyi/algorithm/wms/WmsAlgorithmMapperWorkflowSqlTest.java
@@ -172,6 +172,18 @@ class WmsAlgorithmMapperWorkflowSqlTest {
                 .contains("resultmap=\"tidyworkflowstatemap\"");
     }
 
+    @Test
+    void tidyWorkflowCompletionDoesNotRewriteTerminalRows() throws IOException {
+        assertThat(statement("update", "completeTidyWorkflow"))
+                .contains("status not in ('completed', 'cancelled_reconciled')");
+    }
+
+    @Test
+    void tidyWorkflowPauseDoesNotRewriteAlreadyPausedOrTerminalRows() throws IOException {
+        assertThat(statement("update", "pauseTidyWorkflow"))
+                .contains("status not in ('paused_recovery', 'completed', 'cancelled_reconciled')");
+    }
+
     @Test
     void tidyRecoveryProjectionMapsWorkflowJobInventoryAndLockEvidence() throws IOException {
         String mapping = statement("resultmap", "tidyRecoveryEvidenceMap");