diff --git a/Data/Models/XRechnung/XRInvoice.cs b/Data/Models/XRechnung/XRInvoice.cs
index 510e9f77f..3fd5e27ad 100644
--- a/Data/Models/XRechnung/XRInvoice.cs
+++ b/Data/Models/XRechnung/XRInvoice.cs
@@ -13,12 +13,12 @@ namespace BeWo.Data.Models.XRechnung
 		public string Date { get; set; }
 		public string Currency { get; set; }
 		public string Notice { get; set; }
-		public XRInvoicePeriod Peroid { get; set; }
+		public XRInvoicePeriod Period { get; set; }
 		public XRInvoicePayment Payment { get; set; }
 
 		public XRInvoice()
 		{
-			Peroid = new XRInvoicePeriod();
+			Period = new XRInvoicePeriod();
 			Payment = new XRInvoicePayment();
 		}
 	}
diff --git a/XRechnungUnitTest/UnitTest1.cs b/XRechnungUnitTest/UnitTest1.cs
index 1065b5761..6face0be2 100644
--- a/XRechnungUnitTest/UnitTest1.cs
+++ b/XRechnungUnitTest/UnitTest1.cs
@@ -38,6 +38,8 @@ namespace XRechnungUnitTest
 
 			//var txt = JsonConvert.SerializeObject(req);
 
+			//xrr = xrr.Replace("ä", "ae").Replace("ö", "oe").Replace("ü", "ue").Replace("ß", "ss");
+
 			var txt = $"json={xrr}";
 
 			var response = OwnSoftSender.Send(url, txt);
diff --git a/XRechnungUnitTest/invoicetest.json b/XRechnungUnitTest/invoicetest.json
index f0191024a..c8231dd3e 100644
--- a/XRechnungUnitTest/invoicetest.json
+++ b/XRechnungUnitTest/invoicetest.json
@@ -1 +1 @@
-{"Invoice":{"Type":"380","Number":"BWP28418","Date":"20141002","Currency":"EUR","Notice":"Rechnung gem\u00e4\u00df Bestellung vom 01.03.2018.","Period":{"Start":"20140101","End":"20140130","Description":"Leistungszeitraum xx bis yy"},"Payment":{"Type":58,"Term":"Zahlbar innerhalb 14 Tagen netto","DueDate":"20140101"}},"Seller":{"Name":"Muster GmbH","ID":null,"TaxID":null,"VatID":"DE123456789","Street":"Musterstr. 1-3","ZipCode":"30674","City":"Frankfurt","EMail":"rechnungen@musterfirma.de","CountryCode":"DE","Contact":{"Name":"Peter Musterfrau","Department":"Buchhaltung","Phone":"+49211171717","EMail":"pm@muster.de"},"BankAccount":{"IBAN":"DE38370501980147522957","BIC":"SSKMDEMMXXX","Owner":"Muster GmbH","Reference":"z.B. Rechnungnummer","ReferenceID":"Gl\u00e4ubigerID"}},"Buyer":{"Name":"Kunde GmbH","ID":null,"Street":"Stra\u00dfe & Hausnummer","ZipCode":"Plz","City":"Ort","EMail":"rechnungen@kunde.de","CountryCode":"DE","Reference":"PO-Nummer oder andere Referenz, die Kunde haben will","BankAccount":{"IBAN":"DE38370501980147522957","BIC":"SSKMDEMMXXX","Owner":"Muster GmbH","MandateID":"Mandatsreferenznummer"}},"Position":[{"Quantity":2,"QuantityType":"H87","Text":"Artikel 1","Net":200,"NetTotal":400,"Tax":19,"TaxSum":76,"TaxType":"S"},{"Quantity":4,"QuantityType":"H87","Text":"Artikel 2","Net":10,"NetTotal":40,"Tax":7,"TaxSum":2.8,"TaxType":"S"}]}
\ No newline at end of file
+{"Invoice":{"Type":"380","Number":"BWP28418","Date":"20141002","Currency":"EUR","Notice":"Rechnung gem\u00e4\u00df Bestellung vom 01.03.2018.","Period":{"Start":"20140101","End":"20140130","Description":"Leistungszeitraum xx bis yy"},"Payment":{"Type":58,"Term":"Zahlbar innerhalb 14 Tagen netto","DueDate":"20140101"}},"Seller":{"Name":"Muster GmbH","ID":null,"TaxID":null,"VatID":"DE123456789","Street":"Musterstr. 1-3","ZipCode":"30674","City":"Frankfurt","EMail":"rechnungen@musterfirma.de","CountryCode":"DE","Contact":{"Name":"Peter Musterfrau","Department":"Buchhaltung","Phone":"+49211171717","EMail":"pm@muster.de"},"BankAccount":{"IBAN":"DE38370501980147522957","BIC":"SSKMDEMMXXX","Owner":"Muster GmbH","Reference":"z.B. Rechnungnummer","ReferenceID":"Gl\u00e4ubigerID"}},"Buyer":{"Name":"Kunde GmbH","ID":null,"Street":"Stra\u00dfe Hausnummer","ZipCode":"Plz","City":"Ort","EMail":"rechnungen@kunde.de","CountryCode":"DE","Reference":"PO-Nummer oder andere Referenz, die Kunde haben will","BankAccount":{"IBAN":"DE38370501980147522957","BIC":"SSKMDEMMXXX","Owner":"Muster GmbH","MandateID":"Mandatsreferenznummer"}},"Position":[{"Quantity":2,"QuantityType":"H87","Text":"Artikel 1","Net":200,"NetTotal":400,"Tax":19,"TaxSum":76,"TaxType":"S"},{"Quantity":4,"QuantityType":"H87","Text":"Artikel 2","Net":10,"NetTotal":40,"Tax":7,"TaxSum":2.8,"TaxType":"S"}]}
\ No newline at end of file