update

ts/formats/cii/zugferd/zugferd.decoder.ts

@@ -115,8 +115,10 @@ export class ZUGFeRDDecoder extends CIIBaseDecoder {
       objectActions: []
     };
     
-    // Validate mandatory EN16931 fields
-    EN16931Validator.validateMandatoryFields(invoiceData);
+    // Validate mandatory EN16931 fields unless validation is skipped
+    if (!this.skipValidation) {
+      EN16931Validator.validateMandatoryFields(invoiceData);
+    }
     
     return invoiceData;
   }