From 32e7829480fcad6881ccc3539bdaa128c3133190 Mon Sep 17 00:00:00 2001
From: jstaerk <jstaerk@usegroup.de>
Date: Thu, 30 Oct 2025 07:11:04 +0100
Subject: [PATCH] enforce bt-17 typecodes

---
 library/src/main/java/org/mustangproject/Invoice.java | 1 +
 1 file changed, 1 insertion(+)

diff --git a/library/src/main/java/org/mustangproject/Invoice.java b/library/src/main/java/org/mustangproject/Invoice.java
index 0d48ee62..b3f6a762 100644
--- a/library/src/main/java/org/mustangproject/Invoice.java
+++ b/library/src/main/java/org/mustangproject/Invoice.java
@@ -162,6 +162,7 @@ public class Invoice implements IExportableTransaction {
 	 * @return
 	 */
 	public Invoice setTenderReferencedDocument(ReferencedDocument dr) {
+		dr.setTypeCode("50");//50 is fixed for tender documents
 		tenderReference=dr;
 		return this;
 	}