Index: APPS/EDI/Bestel/impl/BestelService/TandemboxBesteller/Validator/DwarsverdelingValidator.cls.xml
===================================================================
diff -u -r35921 -r36094
--- APPS/EDI/Bestel/impl/BestelService/TandemboxBesteller/Validator/DwarsverdelingValidator.cls.xml	(.../DwarsverdelingValidator.cls.xml)	(revision 35921)
+++ APPS/EDI/Bestel/impl/BestelService/TandemboxBesteller/Validator/DwarsverdelingValidator.cls.xml	(.../DwarsverdelingValidator.cls.xml)	(revision 36094)
@@ -21,7 +21,7 @@
 <Method name="IsValid">
 <ReturnType>%Boolean</ReturnType>
 <Implementation><![CDATA[
-	Quit:((..Product.HeeftDwarsverdeling="")&&(..Product.AantalDwarsverdelingen="")) $$$True
+	Quit:($$$Not(..Product.HeeftDwarsverdeling)&&(..Product.AantalDwarsverdelingen="")) $$$True
 	Quit ..Product.HeeftDwarsverdeling && (..Product.HeeftDwarsverdeling <= 3)
 ]]></Implementation>
 </Method>
Index: APPS/EDI/Bestel/impl/BestelService/TandemboxBesteller/Validator/MatValidator.cls.xml
===================================================================
diff -u -r35909 -r36094
--- APPS/EDI/Bestel/impl/BestelService/TandemboxBesteller/Validator/MatValidator.cls.xml	(.../MatValidator.cls.xml)	(revision 35909)
+++ APPS/EDI/Bestel/impl/BestelService/TandemboxBesteller/Validator/MatValidator.cls.xml	(.../MatValidator.cls.xml)	(revision 36094)
@@ -21,7 +21,7 @@
 <Method name="IsValid">
 <ReturnType>%Boolean</ReturnType>
 <Implementation><![CDATA[
-	Quit:(..Product.HeeftMat = "" && (..Product.MatKleur = "")) $$$True
+	Quit:($$$Not(..Product.HeeftMat) && (..Product.MatKleur = "")) $$$True
 	Quit:$$$Not(..Product.MatMateriaal=##class(DOM.PM.enu.MATMateriaal).Antislip()) $$$False
 	Quit:$$$Not(##class(TECH.StringUtils).Equals(..Product.MatKleur,"S","ANTR")) $$$False
 	Quit $$$Not((..Product.HeeftMat && (..Product.MatKleur = "")) || ($$$Not(..Product.HeeftMat) && $$$Not(..Product.MatKleur = "")))
Index: vhUnitTest/APPS/EDI/Bestel/impl/BestelService/TandemboxBesteller/Validator/MatValidator/Test.cls.xml
===================================================================
diff -u -r35909 -r36094
--- vhUnitTest/APPS/EDI/Bestel/impl/BestelService/TandemboxBesteller/Validator/MatValidator/Test.cls.xml	(.../Test.cls.xml)	(revision 35909)
+++ vhUnitTest/APPS/EDI/Bestel/impl/BestelService/TandemboxBesteller/Validator/MatValidator/Test.cls.xml	(.../Test.cls.xml)	(revision 36094)
@@ -42,6 +42,7 @@
 <Method name="Test: Niets ingevuld">
 <Implementation><![CDATA[
 	#dim Product As APPS.EDI.common.dto.v001.LadeTBX = ##class(APPS.EDI.common.dto.v001.LadeTBX).%New()
+	Set Product.HeeftMat = $$$False
 	
 	Set Validator = ##class(APPS.EDI.Bestel.impl.BestelService.TandemboxBesteller.Validator.MatValidator).%New(Product)