From ec4cffa8a9fe604ecaab2a0af734b5e28c040935 Mon Sep 17 00:00:00 2001
From: Moritz Bunkus <m.bunkus@linet.de>
Date: Thu, 26 Nov 2020 11:04:09 +0100
Subject: [PATCH 1/1] =?utf8?q?Factur-X/ZUGFeRD:=20UStID-Nr=20des=20Kunden?=
 =?utf8?q?=20nur=20ausgeben,=20wenn=20tats=C3=A4chlich=20angegeben?=
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---
 SL/DB/Helper/ZUGFeRD.pm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/SL/DB/Helper/ZUGFeRD.pm b/SL/DB/Helper/ZUGFeRD.pm
index 86daa9c96..5455398cd 100644
--- a/SL/DB/Helper/ZUGFeRD.pm
+++ b/SL/DB/Helper/ZUGFeRD.pm
@@ -477,7 +477,7 @@ sub _buyer_trade_party {
   $params{xml}->dataElement("ram:Name", _u8($self->customer->name));
 
   _customer_postal_trade_address(%params, customer => $self->customer);
-  _specified_tax_registration($self->customer->ustid, %params);
+  _specified_tax_registration($self->customer->ustid, %params) if $self->customer->ustid;
 
   $params{xml}->endTag;
   #       </ram:BuyerTradeParty>
-- 
2.20.1