Index: Application/Ringtoets/src/Application.Ringtoets.Storage/Create/Piping/RingtoetsPipingSurfaceLineCreateExtensions.cs
===================================================================
diff -u -r508d720230c5f63bce7f95bddc3b7a04808d267d -r37aadd6a7b1a13ef1c8809b3479df0911c6632bb
--- Application/Ringtoets/src/Application.Ringtoets.Storage/Create/Piping/RingtoetsPipingSurfaceLineCreateExtensions.cs	(.../RingtoetsPipingSurfaceLineCreateExtensions.cs)	(revision 508d720230c5f63bce7f95bddc3b7a04808d267d)
+++ Application/Ringtoets/src/Application.Ringtoets.Storage/Create/Piping/RingtoetsPipingSurfaceLineCreateExtensions.cs	(.../RingtoetsPipingSurfaceLineCreateExtensions.cs)	(revision 37aadd6a7b1a13ef1c8809b3479df0911c6632bb)
@@ -42,9 +42,10 @@
         /// </summary>
         /// <param name="surfaceLine">The surface line to create a database entity for.</param>
         /// <param name="registry">The object keeping track of create operations.</param>
+        /// <param name="order">Index at which this instance resides inside its parent container.</param>
         /// <returns>a new <see cref="AssessmentSectionEntity"/>.</returns>
         /// <exception cref="ArgumentNullException">Thrown when <paramref name="registry"/> is <c>null</c>.</exception>
-        internal static SurfaceLineEntity Create(this RingtoetsPipingSurfaceLine surfaceLine, PersistenceRegistry registry)
+        internal static SurfaceLineEntity Create(this RingtoetsPipingSurfaceLine surfaceLine, PersistenceRegistry registry, int order)
         {
             if (registry == null)
             {
@@ -60,7 +61,8 @@
                 Name = surfaceLine.Name,
                 ReferenceLineIntersectionX = surfaceLine.ReferenceLineIntersectionWorldPoint.X.ToNaNAsNull(),
                 ReferenceLineIntersectionY = surfaceLine.ReferenceLineIntersectionWorldPoint.Y.ToNaNAsNull(),
-                PointsData = new Point3DBinaryConverter().ToBytes(surfaceLine.Points)
+                PointsData = new Point3DBinaryConverter().ToBytes(surfaceLine.Points),
+                Order = order
             };
             CreateCharacteristicPointEntities(surfaceLine, registry, entity);