diff --git a/supabase/migrations/20260629170000_customers_add_address_line2_default_payment_terms.sql b/supabase/migrations/20260629170000_customers_add_address_line2_default_payment_terms.sql
new file mode 100644
index 00000000..8a8a008e
--- /dev/null
+++ b/supabase/migrations/20260629170000_customers_add_address_line2_default_payment_terms.sql
@@ -0,0 +1,12 @@
+-- The `customers` table was missing `address_line2` and `default_payment_terms`
+-- even though the sibling `suppliers` table has both, and several code paths
+-- insert/select them on customers:
+--   * extensions/general/arcim-migration (provider migration importer)
+--   * app/api/import/customers/execute  (built-in customer CSV import)
+--   * app/api/export/customers          (customer CSV export)
+-- Inserts therefore failed with PostgREST "Could not find the 'address_line2'
+-- column of 'customers' in the schema cache", so customer migration/import
+-- silently imported 0 rows. Add the two columns to match `suppliers`.
+alter table public.customers
+  add column if not exists address_line2 text,
+  add column if not exists default_payment_terms integer default 30;
diff --git a/supabase/migrations/20260629170100_customers_add_vat_number_validated.sql b/supabase/migrations/20260629170100_customers_add_vat_number_validated.sql
new file mode 100644
index 00000000..43fe39b9
--- /dev/null
+++ b/supabase/migrations/20260629170100_customers_add_vat_number_validated.sql
@@ -0,0 +1,12 @@
+-- The `customers` table was missing the boolean `vat_number_validated` flag that
+-- `types/index.ts` and ~40 code sites depend on: getVatRules/getAvailableVatRates,
+-- the customers-list "validated" badge, and the v1 customers API column select.
+-- It went unnoticed because normal customer creation only writes the flag when a
+-- VIES check runs, and reads degrade to undefined when the column is absent. The
+-- arcim-migration importer writes it unconditionally (vat_number_validated: false),
+-- so customer + sales-invoice-stub inserts failed with PostgREST "Could not find
+-- the 'vat_number_validated' column of 'customers' in the schema cache".
+-- This flag is distinct from the existing `vat_number_validated_at` timestamp,
+-- which records when the last successful VIES check happened.
+alter table public.customers
+  add column if not exists vat_number_validated boolean not null default false;