diff --git a/APPL/API2/model_bes_kenmerk.inc b/APPL/API2/model_bes_kenmerk.inc
index 1f719adec4..cf074e8511 100644
--- a/APPL/API2/model_bes_kenmerk.inc
+++ b/APPL/API2/model_bes_kenmerk.inc
@@ -168,7 +168,7 @@ function model_bes_kenmerk(params)
 
     this.getPropertyType = function (kenmerkdata)
     {
-        var typedata = api2.GET(new model_bes_srtkenmerk(), kenmerkdata.orderpropertytype.id);
+        var typedata = api2.GET(new model_bes_srtkenmerk({internal: params.internal}), kenmerkdata.orderpropertytype.id);
         return typedata;
     }
 
diff --git a/APPL/API2/model_bes_srtkenmerk.inc b/APPL/API2/model_bes_srtkenmerk.inc
index c8126ab8da..224c2b8ac3 100644
--- a/APPL/API2/model_bes_srtkenmerk.inc
+++ b/APPL/API2/model_bes_srtkenmerk.inc
@@ -20,7 +20,7 @@ function model_bes_srtkenmerk()
     this.table = "bes_srtkenmerk";
     this.primary = "bes_srtkenmerk_key";
     this.soft_delete = "bes_srtkenmerk_verwijder";
-    this.autfunction = "WEB_BESMGT";
+    this.autfunction = params.internal?false:"WEB_BESMGT";
     this.record_title = L("bes_srtkenmerk");
     this.records_title = L("bes_srtkenmerk_m");
 
diff --git a/APPL/API2/model_cnt_kenmerk.inc b/APPL/API2/model_cnt_kenmerk.inc
index 3b0aa50c7c..fefc057d40 100644
--- a/APPL/API2/model_cnt_kenmerk.inc
+++ b/APPL/API2/model_cnt_kenmerk.inc
@@ -142,7 +142,7 @@ function model_cnt_kenmerk(params)
 
     this.getPropertyType = function (kenmerkdata)
     {
-        var typedata = api2.GET(new model_cnt_srtkenmerk(), kenmerkdata.contractpropertytype.id);
+        var typedata = api2.GET(new model_cnt_srtkenmerk({internal: params.internal}), kenmerkdata.contractpropertytype.id);
         return typedata;
     }
 
diff --git a/APPL/API2/model_cnt_srtkenmerk.inc b/APPL/API2/model_cnt_srtkenmerk.inc
index ff603226ba..48d8beffac 100644
--- a/APPL/API2/model_cnt_srtkenmerk.inc
+++ b/APPL/API2/model_cnt_srtkenmerk.inc
@@ -20,7 +20,7 @@ function model_cnt_srtkenmerk()
     this.table = "cnt_srtkenmerk";
     this.primary = "cnt_srtkenmerk_key";
     this.soft_delete = "cnt_srtkenmerk_verwijder";
-    this.autfunction = "WEB_CNTMGT";
+    this.autfunction = params.internal?false:"WEB_CNTMGT";
     this.record_title = L("cnt_srtkenmerk");
     this.records_title = L("cnt_srtkenmerk_m");
 
diff --git a/APPL/API2/model_ins_kenmerk.inc b/APPL/API2/model_ins_kenmerk.inc
index 0d3707722c..6181307954 100644
--- a/APPL/API2/model_ins_kenmerk.inc
+++ b/APPL/API2/model_ins_kenmerk.inc
@@ -184,7 +184,7 @@ function model_ins_kenmerk(niveau, params)
 
     this.getPropertyType = function (kenmerkdata)
     {
-        var typedata = api2.GET(new model_ins_srtkenmerk(), kenmerkdata.objectpropertytype.id);
+        var typedata = api2.GET(new model_ins_srtkenmerk({internal: params.internal}), kenmerkdata.objectpropertytype.id);
         return typedata;
     }
 
diff --git a/APPL/API2/model_ins_srtkenmerk.inc b/APPL/API2/model_ins_srtkenmerk.inc
index 61f1d03ffd..1f01fb06d5 100644
--- a/APPL/API2/model_ins_srtkenmerk.inc
+++ b/APPL/API2/model_ins_srtkenmerk.inc
@@ -20,7 +20,7 @@ function model_ins_srtkenmerk()
     this.table = "ins_srtkenmerk";
     this.primary = "ins_srtkenmerk_key";
     this.soft_delete = "ins_srtkenmerk_verwijder";
-    this.autfunction = "WEB_INSMGT";
+    this.autfunction = params.internal?false:"WEB_INSMGT";
     this.record_title = L("ins_srtkenmerk");
     this.records_title = L("ins_srtkenmerk_m");
 
diff --git a/APPL/API2/model_res_kenmerk.inc b/APPL/API2/model_res_kenmerk.inc
index 69b7738098..5374858bb5 100644
--- a/APPL/API2/model_res_kenmerk.inc
+++ b/APPL/API2/model_res_kenmerk.inc
@@ -127,7 +127,7 @@ function model_res_kenmerk(params)
 
     this.getPropertyType = function (kenmerkdata)
     {
-        var typedata = api2.GET(new model_res_srtkenmerk(), kenmerkdata.bookingpropertytype.id);
+        var typedata = api2.GET(new model_res_srtkenmerk({internal: params.internal}), kenmerkdata.bookingpropertytype.id);
         return typedata;
     }
 
diff --git a/APPL/API2/model_res_srtkenmerk.inc b/APPL/API2/model_res_srtkenmerk.inc
index c9aefd6f05..58ebc9d00b 100644
--- a/APPL/API2/model_res_srtkenmerk.inc
+++ b/APPL/API2/model_res_srtkenmerk.inc
@@ -19,7 +19,7 @@ function model_res_srtkenmerk()
     this.table = "res_srtkenmerk";
     this.primary = "res_srtkenmerk_key";
     this.soft_delete = "res_srtkenmerk_verwijder";
-    this.autfunction = "WEB_RESMGT";
+    this.autfunction = params.internal?false:"WEB_RESMGT";
     this.record_title = L("mgt_srtkenmerk");
     this.records_title = L("mgt_srtkenmerk_m");