diff --git a/ApplicationLibCode/ProjectDataModelCommands/RimcEclipseCase.cpp b/ApplicationLibCode/ProjectDataModelCommands/RimcEclipseCase.cpp
index 8b1f88e974..f90efc2a5b 100644
--- a/ApplicationLibCode/ProjectDataModelCommands/RimcEclipseCase.cpp
+++ b/ApplicationLibCode/ProjectDataModelCommands/RimcEclipseCase.cpp
@@ -796,8 +796,12 @@ std::expected<caf::PdmObjectHandle*, QString> RimEclipseCase_exportCompletions::
 
     if ( m_exportFolder().isEmpty() ) return std::unexpected( "No export folder specified." );
 
+    // The export creates the folder on demand, matching the legacy command file behavior
     QDir folder( m_exportFolder() );
-    if ( !folder.exists() ) return std::unexpected( QString( "The export folder '%1' does not exist." ).arg( m_exportFolder() ) );
+    if ( !folder.exists() && !folder.mkpath( "." ) )
+    {
+        return std::unexpected( QString( "The export folder '%1' does not exist and could not be created." ).arg( m_exportFolder() ) );
+    }
 
     eclipseCase->ensureReservoirCaseIsOpen();
     if ( !eclipseCase->eclipseCaseData() )
@@ -929,8 +933,12 @@ std::expected<caf::PdmObjectHandle*, QString> RimEclipseCase_exportMswCompletion
 
     if ( m_exportFolder().isEmpty() ) return std::unexpected( "No export folder specified." );
 
+    // The export creates the folder on demand, matching the legacy command file behavior
     QDir folder( m_exportFolder() );
-    if ( !folder.exists() ) return std::unexpected( QString( "The export folder '%1' does not exist." ).arg( m_exportFolder() ) );
+    if ( !folder.exists() && !folder.mkpath( "." ) )
+    {
+        return std::unexpected( QString( "The export folder '%1' does not exist and could not be created." ).arg( m_exportFolder() ) );
+    }
 
     std::vector<RimWellPath*> wellPaths = m_wellPaths.ptrReferencedObjectsByType();
     if ( wellPaths.empty() ) return std::unexpected( "No well paths specified." );
diff --git a/GrpcInterface/Python/rips/tests/test_wells_path_completions.py b/GrpcInterface/Python/rips/tests/test_wells_path_completions.py
index 88390cd427..d6128dca2c 100644
--- a/GrpcInterface/Python/rips/tests/test_wells_path_completions.py
+++ b/GrpcInterface/Python/rips/tests/test_wells_path_completions.py
@@ -56,10 +56,20 @@ def test_export_completions(rips_instance, initialize_test):
         files = os.listdir(tmpdirname)
         assert len(files) >= 1
 
+    with tempfile.TemporaryDirectory(prefix="rips") as tmpdirname:
+        # A non-existent export folder is created on demand
+        export_folder = os.path.join(tmpdirname, "new_folder")
+        case.export_completions(
+            well_paths=[well_path],
+            time_step=1,
+            export_folder=export_folder,
+            file_split=rips.CompletionExportSplit.UNIFIED_FILE,
+            custom_file_name="created.sch",
+        )
+        assert "created.sch" in os.listdir(export_folder)
+
     with pytest.raises(rips.RipsError):
         case.export_completions(well_paths=[well_path])
-    with pytest.raises(rips.RipsError):
-        case.export_completions(well_paths=[well_path], export_folder="/does/not/exist")
 
 
 def test_add_well_path_completions(rips_instance, initialize_test):