diff --git a/apps/cs/src/entities/link/model/link-interface.ts b/apps/cs/src/entities/link/model/link-interface.ts
index 244bb4c63..67cd75807 100644
--- a/apps/cs/src/entities/link/model/link-interface.ts
+++ b/apps/cs/src/entities/link/model/link-interface.ts
@@ -118,7 +118,7 @@ export const linkFormSchema = z.object({
     last_link_rslt_cd: z.string().max(4).nullable().optional(),
     last_link_excn_dt: z.string().max(40).nullable().optional(),
     next_link_excn_dt: z.string().max(40).nullable().optional(),
-    last_link_err_cd: z.string().max(10).nullable().optional(),
+    last_link_err_cd: z.string().max(50, { message: '마지막 연계 오류 코드는 50자 이하입니다.' }).nullable().optional(),
     mdfcn_dt: z.string().nullable().optional(),
     mdfr_id: z.string().nullable().optional(),
     link_cycle_mi: z.coerce.number().nullable().optional().refine((val) => {