diff --git a/src/main/java/de/metas/ui/web/process/adprocess/ADProcessParametersRepository.java b/src/main/java/de/metas/ui/web/process/adprocess/ADProcessParametersRepository.java
index 7921235f0..5d88ba38a 100644
--- a/src/main/java/de/metas/ui/web/process/adprocess/ADProcessParametersRepository.java
+++ b/src/main/java/de/metas/ui/web/process/adprocess/ADProcessParametersRepository.java
@@ -12,6 +12,7 @@
 import de.metas.process.IADPInstanceDAO;
 import de.metas.process.ProcessInfoParameter;
 import de.metas.ui.web.exceptions.EntityNotFoundException;
+import de.metas.ui.web.window.WindowConstants;
 import de.metas.ui.web.window.datatypes.DocumentId;
 import de.metas.ui.web.window.datatypes.LookupValue;
 import de.metas.ui.web.window.descriptor.DocumentEntityDescriptor;
@@ -130,7 +131,10 @@ public Document createNewDocument(final DocumentEntityDescriptor parametersDescr
 	Document createNewParametersDocument(final DocumentEntityDescriptor parametersDescriptor, final DocumentId adPInstanceId, final IDocumentEvaluatee evalCtx)
 	{
 		return Document.builder(parametersDescriptor)
-				.setShadowParentDocumentEvaluatee(evalCtx)
+				.setShadowParentDocumentEvaluatee(evalCtx.excludingFields(
+						WindowConstants.FIELDNAME_Processed,
+						WindowConstants.FIELDNAME_Processing,
+						WindowConstants.FIELDNAME_IsActive))
 				.initializeAsNewDocument(adPInstanceId, VERSION_DEFAULT);
 	}
 
diff --git a/src/main/java/de/metas/ui/web/window/model/DocumentEvaluatee.java b/src/main/java/de/metas/ui/web/window/model/DocumentEvaluatee.java
index 37d01fde4..1957555b7 100644
--- a/src/main/java/de/metas/ui/web/window/model/DocumentEvaluatee.java
+++ b/src/main/java/de/metas/ui/web/window/model/DocumentEvaluatee.java
@@ -7,6 +7,7 @@
 import java.util.Optional;
 import java.util.Properties;
 
+import javax.annotation.Nullable;
 import javax.validation.constraints.NotNull;
 
 import org.adempiere.ad.validationRule.IValidationContext;
@@ -18,6 +19,7 @@
 import org.slf4j.Logger;
 
 import com.google.common.base.MoreObjects;
+import com.google.common.collect.ImmutableSet;
 
 import de.metas.logging.LogManager;
 import de.metas.printing.esb.base.util.Check;
@@ -28,6 +30,7 @@
 import de.metas.ui.web.window.datatypes.json.JSONDate;
 import de.metas.ui.web.window.descriptor.DetailId;
 import de.metas.ui.web.window.descriptor.DocumentFieldWidgetType;
+import lombok.NonNull;
 
 /*
  * #%L
@@ -56,22 +59,23 @@
 	private static final Logger logger = LogManager.getLogger(DocumentEvaluatee.class);
 
 	private final Document _document;
-
-	//
-	// Scope
 	private final String _fieldNameInScope;
+	private final ImmutableSet<String> _fieldNamesToExclude;
+
 
 	/* package */ DocumentEvaluatee(@NotNull final Document document)
 	{
 		_document = document; // note: we assume it's not null
 		_fieldNameInScope = null;
+		_fieldNamesToExclude = ImmutableSet.of();
 	}
 
-	private DocumentEvaluatee(@NotNull final Document document, final String fieldNameInScope)
+	private DocumentEvaluatee(@NotNull final Document document, @Nullable final String fieldNameInScope, @NonNull final ImmutableSet<String> fieldNamesToExclude)
 	{
 		super();
 		_document = document; // note: we assume it's not null
 		_fieldNameInScope = fieldNameInScope; // null is also ok
+		_fieldNamesToExclude = fieldNamesToExclude;
 	}
 
 	@Override
@@ -92,13 +96,25 @@ public IDocumentEvaluatee fieldInScope(final String fieldNameInScope)
 			return this;
 		}
 
-		return new DocumentEvaluatee(_document, fieldNameInScope);
+		return new DocumentEvaluatee(_document, fieldNameInScope, ImmutableSet.of());
 	}
 
 	private final boolean isFieldInScope(final String fieldName)
 	{
 		return Objects.equals(_fieldNameInScope, fieldName);
 	}
+	
+	@Override
+	public IDocumentEvaluatee excludingFields(final String ... fieldNamesToExclude)
+	{
+		return new DocumentEvaluatee(_document, _fieldNameInScope, ImmutableSet.copyOf(fieldNamesToExclude));
+	}
+	
+	private boolean isExcludedField(final String fieldName)
+	{
+		return _fieldNamesToExclude.contains(fieldName);
+	}
+
 
 	private Properties getCtx()
 	{
@@ -205,6 +221,11 @@ public Optional<Object> get_ValueIfExists(final String variableName, final Class
 		{
 			return Optional.empty();
 		}
+		
+		if(isExcludedField(variableName))
+		{
+			return Optional.empty();
+		}
 
 		if (WindowConstants.CONTEXTVAR_NextLineNo.equals(variableName))
 		{
diff --git a/src/main/java/de/metas/ui/web/window/model/IDocumentEvaluatee.java b/src/main/java/de/metas/ui/web/window/model/IDocumentEvaluatee.java
index 072974b0a..7685bf85c 100644
--- a/src/main/java/de/metas/ui/web/window/model/IDocumentEvaluatee.java
+++ b/src/main/java/de/metas/ui/web/window/model/IDocumentEvaluatee.java
@@ -37,4 +37,11 @@ public interface IDocumentEvaluatee extends Evaluatee
 	 * @return new evaluatee instance which has the given field in scope
 	 */
 	IDocumentEvaluatee fieldInScope(String fieldNameInScope);
+
+	/**
+	 * Creates a new evaluatee which will exclude given field names.
+	 * 
+	 * @param fieldNamesToExclude
+	 */
+	IDocumentEvaluatee excludingFields(String... fieldNamesToExclude);
 }