diff --git a/Kitodo/src/main/java/org/kitodo/production/services/data/ProcessService.java b/Kitodo/src/main/java/org/kitodo/production/services/data/ProcessService.java
index 5ecc4467811..162a1cece58 100644
--- a/Kitodo/src/main/java/org/kitodo/production/services/data/ProcessService.java
+++ b/Kitodo/src/main/java/org/kitodo/production/services/data/ProcessService.java
@@ -805,6 +805,31 @@ public List<ProcessDTO> findLinkableChildProcesses(String searchInput, int rules
         return linkableProcesses;
     }
 
+    /**
+     * Checks whether all child processes of the given parent process are in a completed state.
+     *
+     * @param parentProcess The parent process whose child processes are being checked.
+     * @return true if all child processes are in a completed state, false otherwise.
+     */
+    public boolean areAllChildProcessesInCompletedState(Process parentProcess) {
+        String hql = "SELECT count(p) FROM Process p WHERE p.parent = :parent "
+                + "AND p.sortHelperStatus NOT IN (:completedStates)";
+
+        Map<String, Object> parameters = new HashMap<>();
+        parameters.put("parent", parentProcess);
+        parameters.put("completedStates", List.of(
+                ProcessState.COMPLETED20.getValue(),
+                ProcessState.COMPLETED.getValue()
+        ));
+        try {
+            Long count = countDatabaseRows(hql, parameters);
+            return count == 0;  // If count is 0, all child processes are completed
+        } catch (DAOException e) {
+            logger.error(e.getMessage(), e);
+            return false;
+        }
+    }
+
     /**
      * Searches for linkable processes based on user input. A process can be
      * linked if it has the same rule set, belongs to the same client, and the
diff --git a/Kitodo/src/main/java/org/kitodo/production/services/workflow/WorkflowControllerService.java b/Kitodo/src/main/java/org/kitodo/production/services/workflow/WorkflowControllerService.java
index 5575caa251e..9e1a180d32c 100644
--- a/Kitodo/src/main/java/org/kitodo/production/services/workflow/WorkflowControllerService.java
+++ b/Kitodo/src/main/java/org/kitodo/production/services/workflow/WorkflowControllerService.java
@@ -474,11 +474,14 @@ private void activateTasksForClosedTask(Task closedTask) throws DataException, I
             TaskManager.addTask(thread);
         }
 
-        closeParent(process);
+        if (closedTask.isLast()) {
+            closeParent(process);
+        }
     }
 
     private void closeParent(Process process) throws DataException {
-        if (Objects.nonNull(process.getParent()) && allChildrenClosed(process.getParent())) {
+        if (Objects.nonNull(process.getParent()) && ServiceManager.getProcessService()
+                .areAllChildProcessesInCompletedState(process.getParent())) {
             process.getParent().setSortHelperStatus(ProcessState.COMPLETED.getValue());
             ServiceManager.getProcessService().save(process.getParent());
             closeParent(process.getParent());