diff --git a/app/Controllers/Http/ErpsController.ts b/app/Controllers/Http/ErpsController.ts
index 5686c1a..7bb01bd 100644
--- a/app/Controllers/Http/ErpsController.ts
+++ b/app/Controllers/Http/ErpsController.ts
@@ -109,7 +109,7 @@ export default class ErpsController {
                   ?.split(":")[1]
                   ?.replace("\r", "")
                   .trim() !== "" &&
-                SN !== "N/A"
+                SN !== "N/A" && SN !== "NA" && SN.length>4
               ) {
                 if (output.some((u) => u.SN === SN)) {
                   output.map((u, index) => {