diff --git a/src/integrations/supabase/types.ts b/src/integrations/supabase/types.ts
index b04d819..98bc041 100644
--- a/src/integrations/supabase/types.ts
+++ b/src/integrations/supabase/types.ts
@@ -3383,6 +3383,7 @@ export type Database = {
           created_by: string | null
           entry_date: string
           entry_type: string
+          external_id: string | null
           id: string
           note: string | null
           source_invoice_id: string | null
@@ -3399,6 +3400,7 @@ export type Database = {
           created_by?: string | null
           entry_date?: string
           entry_type: string
+          external_id?: string | null
           id?: string
           note?: string | null
           source_invoice_id?: string | null
@@ -3415,6 +3417,7 @@ export type Database = {
           created_by?: string | null
           entry_date?: string
           entry_type?: string
+          external_id?: string | null
           id?: string
           note?: string | null
           source_invoice_id?: string | null
diff --git a/supabase/migrations/20260501144357_f8aab03b-40b5-4f2d-b19e-cc8a58ad71f6.sql b/supabase/migrations/20260501144357_f8aab03b-40b5-4f2d-b19e-cc8a58ad71f6.sql
new file mode 100644
index 0000000..73a0d05
--- /dev/null
+++ b/supabase/migrations/20260501144357_f8aab03b-40b5-4f2d-b19e-cc8a58ad71f6.sql
@@ -0,0 +1,3 @@
+ALTER TABLE public.trust_ledger_entries ADD COLUMN IF NOT EXISTS external_id text;
+CREATE UNIQUE INDEX IF NOT EXISTS trust_ledger_entries_external_id_key
+  ON public.trust_ledger_entries (external_id) WHERE external_id IS NOT NULL;
\ No newline at end of file