diff --git a/src/app/portfolio/[slug]/components/dataTable.tsx b/src/app/portfolio/[slug]/components/dataTable.tsx
index 75e654ef..6e278cd8 100644
--- a/src/app/portfolio/[slug]/components/dataTable.tsx
+++ b/src/app/portfolio/[slug]/components/dataTable.tsx
@@ -82,9 +82,11 @@ export default function DataTable<TData extends Record<string, any>>({
     data,
     columns,
 
-    // Map selection/row identity to the property's stable id, so a selection
-    // survives pagination and lazy-loaded pages (not row-index keyed).
-    getRowId: (row) => String(row.id),
+    // Key rows by their stable id when present (so a selection survives
+    // pagination + lazy-loaded pages), falling back to the row index for
+    // consumers whose rows have no `id` (e.g. the plan table) — otherwise every
+    // idless row would collide on the key "undefined".
+    getRowId: (row, index) => (row.id != null ? String(row.id) : String(index)),
 
     getCoreRowModel: getCoreRowModel(),
     getSortedRowModel: getSortedRowModel(),