diff --git a/paperless-backend/src/agrarmonitor/agrarmonitor-polling.service.ts b/paperless-backend/src/agrarmonitor/agrarmonitor-polling.service.ts
index a976cbf..7d4c855 100644
--- a/paperless-backend/src/agrarmonitor/agrarmonitor-polling.service.ts
+++ b/paperless-backend/src/agrarmonitor/agrarmonitor-polling.service.ts
@@ -220,7 +220,7 @@ export class AgrarmonitorPollingService implements OnModuleInit {
           }
         }
 
-        if (!amDoc.eingangsDatum) {
+        if (!amDoc.eingangsDatum && amDoc.belegNummer) {
           const eingangsdatumField = ((doc.custom_fields as any[]) ?? []).find(
             (cf: any) => cf.field === EINGANGSDATUM_FIELD_ID,
           );
@@ -233,7 +233,7 @@ export class AgrarmonitorPollingService implements OnModuleInit {
           }
         } 
         
-        if (!amDoc.buchungsDatum) {
+        if (amDoc.buchungsDatum) {
           try {
             let correspondentId: number | undefined;
             const customer = customers.find((c) => Number(c.id) === amDoc.kundenId);