diff --git a/migration/i5.1/oracle/201709131604_IDEMPIERE-3486.sql b/migration/i5.1/oracle/201709131604_IDEMPIERE-3486.sql
new file mode 100644
index 0000000000..4bb54b8e7a
--- /dev/null
+++ b/migration/i5.1/oracle/201709131604_IDEMPIERE-3486.sql
@@ -0,0 +1,14 @@
+SET SQLBLANKLINES ON
+SET DEFINE OFF
+
+-- IDEMPIERE-3486 add default logic for customize and vendor parameter
+-- Sep 13, 2017 9:25:06 PM ICT
+UPDATE AD_InfoColumn SET DefaultValue='@SQL=SELECT ''@IsSOTrx:Y@'' AS DefaultValue FROM  DUAL',Updated=TO_DATE('2017-09-13 21:25:06','YYYY-MM-DD HH24:MI:SS'),UpdatedBy=100 WHERE AD_InfoColumn_ID=200036
+;
+
+-- Sep 13, 2017 9:25:14 PM ICT
+UPDATE AD_InfoColumn SET DefaultValue='@SQL=SELECT CASE  ''@IsSOTrx:N@'' WHEN ''N'' THEN ''Y'' ELSE ''N'' END  AS DefaultValue FROM  DUAL',Updated=TO_DATE('2017-09-13 21:25:14','YYYY-MM-DD HH24:MI:SS'),UpdatedBy=100 WHERE AD_InfoColumn_ID=200037
+;
+
+SELECT register_migration_script('201709131604_IDEMPIERE-3486.sql') FROM dual
+;
\ No newline at end of file
diff --git a/migration/i5.1/postgresql/201709131604_IDEMPIERE-3486.sql b/migration/i5.1/postgresql/201709131604_IDEMPIERE-3486.sql
new file mode 100644
index 0000000000..ff4b64d3f4
--- /dev/null
+++ b/migration/i5.1/postgresql/201709131604_IDEMPIERE-3486.sql
@@ -0,0 +1,11 @@
+-- IDEMPIERE-3486 add default logic for customize and vendor parameter
+-- Sep 13, 2017 9:25:06 PM ICT
+UPDATE AD_InfoColumn SET DefaultValue='@SQL=SELECT ''@IsSOTrx:Y@'' AS DefaultValue FROM  DUAL',Updated=TO_TIMESTAMP('2017-09-13 21:25:06','YYYY-MM-DD HH24:MI:SS'),UpdatedBy=100 WHERE AD_InfoColumn_ID=200036
+;
+
+-- Sep 13, 2017 9:25:14 PM ICT
+UPDATE AD_InfoColumn SET DefaultValue='@SQL=SELECT CASE  ''@IsSOTrx:N@'' WHEN ''N'' THEN ''Y'' ELSE ''N'' END  AS DefaultValue FROM  DUAL',Updated=TO_TIMESTAMP('2017-09-13 21:25:14','YYYY-MM-DD HH24:MI:SS'),UpdatedBy=100 WHERE AD_InfoColumn_ID=200037
+;
+
+SELECT register_migration_script('201709131604_IDEMPIERE-3486.sql') FROM dual
+;
\ No newline at end of file
diff --git a/org.adempiere.ui.zk/WEB-INF/src/org/adempiere/webui/info/InfoBPartnerWindow.java b/org.adempiere.ui.zk/WEB-INF/src/org/adempiere/webui/info/InfoBPartnerWindow.java
index b33544e9fb..28fa3eaead 100644
--- a/org.adempiere.ui.zk/WEB-INF/src/org/adempiere/webui/info/InfoBPartnerWindow.java
+++ b/org.adempiere.ui.zk/WEB-INF/src/org/adempiere/webui/info/InfoBPartnerWindow.java
@@ -78,37 +78,6 @@ public class InfoBPartnerWindow extends InfoWindow {
 		ih = null;
 	}	//	showHistory
 
-	/**
-	 * {@inheritDoc}
-	 * set value of checkbox IsVendor and IsCustomer by IsSOTrx flag
-	 */
-	@Override
-	protected void initParameters() {
-		String isSOTrx = Env.getContext(Env.getCtx(), p_WindowNo, "IsSOTrx");
-		if (!isLookup() && Util.isEmpty(isSOTrx)) {
-			isSOTrx = "Y";
-		}
-		
-		if (!Util.isEmpty(isSOTrx)) {
-			if ("Y".equals(isSOTrx)) {
-				// set value of IsCustomer checkbox
-				for (WEditor editor : editors) {
-					if (editor.getGridField() != null && editor.getGridField().getColumnName().equals("IsCustomer")) {
-						editor.setValue("Y");
-						break;
-					}
-				}
-			} else if ("N".equals(isSOTrx)) {
-				// set value of IsVendor checkbox
-				for (WEditor editor : editors) {
-					if (editor.getGridField() != null && editor.getGridField().getColumnName().equals("IsVendor")) {
-						editor.setValue("Y");
-						break;
-					}
-				}
-			}
-		}
-	}
 	
 	@Override
 	protected void saveSelectionDetail() {