diff --git a/src/zabapgit_http.prog.abap b/src/zabapgit_http.prog.abap
index 0420e0a1e..8f7dc46f0 100644
--- a/src/zabapgit_http.prog.abap
+++ b/src/zabapgit_http.prog.abap
@@ -198,7 +198,9 @@ CLASS lcl_http_client IMPLEMENTATION.
 
   METHOD send_receive.
 
-    DATA lv_text TYPE string.
+    DATA: lv_text    TYPE string,
+          lv_code    TYPE i,
+          lv_message TYPE string.
 
     mi_client->send( ).
     mi_client->receive(
@@ -207,21 +209,21 @@ CLASS lcl_http_client IMPLEMENTATION.
         http_invalid_state         = 2
         http_processing_failed     = 3
         OTHERS                     = 4 ).
+
     IF sy-subrc <> 0.
-      CASE sy-subrc.
-        WHEN 1.
-          " make sure:
-          " a) SSL is setup properly in STRUST
-          " b) no firewalls
-          " check trace file in transaction SMICM
-          lv_text = 'HTTP Communication Failure'.           "#EC NOTEXT
-        WHEN 2.
-          lv_text = 'HTTP Invalid State'.                   "#EC NOTEXT
-        WHEN 3.
-          lv_text = 'HTTP Processing failed'.               "#EC NOTEXT
-        WHEN OTHERS.
-          lv_text = 'Another error occured'.                "#EC NOTEXT
-      ENDCASE.
+      " in case of HTTP_COMMUNICATION_FAILURE
+      " make sure:
+      " a) SSL is setup properly in STRUST
+      " b) no firewalls
+      " check trace file in transaction SMICM
+
+      mi_client->get_last_error(
+        IMPORTING
+          code    = lv_code
+          message = lv_message ).
+
+      lv_text = |HTTP error { lv_code } occured: { lv_message }|.
+
       zcx_abapgit_exception=>raise( lv_text ).
     ENDIF.
 
@@ -502,7 +504,7 @@ CLASS lcl_http IMPLEMENTATION.
 
     DATA: lv_host TYPE string,
           lt_list TYPE zif_abapgit_definitions=>ty_icm_sinfo2_tt,
-          li_exit TYPE ref to lif_exit.
+          li_exit TYPE REF TO lif_exit.
 
     CALL FUNCTION 'ICM_GET_INFO2'
       TABLES
diff --git a/src/zabapgit_object_iamu.prog.abap b/src/zabapgit_object_iamu.prog.abap
index 880950a28..aa6c3a074 100644
--- a/src/zabapgit_object_iamu.prog.abap
+++ b/src/zabapgit_object_iamu.prog.abap
@@ -116,8 +116,7 @@ CLASS lcl_object_iamu IMPLEMENTATION.
         object_not_existing          = 9
         object_invalid               = 10
         error_occured                = 11
-        content_data_error           = 12
-        OTHERS                       = 13 ).
+        OTHERS                       = 12 ).
 
     IF sy-subrc <> 0.
       zcx_abapgit_exception=>raise( |Error from if_w3_api_mime~set_changeable| ).
@@ -303,8 +302,7 @@ CLASS lcl_object_iamu IMPLEMENTATION.
         object_not_existing          = 9
         object_invalid               = 10
         error_occured                = 11
-        content_data_error           = 12
-        OTHERS                       = 13 ).
+        OTHERS                       = 12 ).
 
     IF sy-subrc <> 0.
       zcx_abapgit_exception=>raise( |Error from if_w3_api_mime~set_changeable| ).
diff --git a/src/zabapgit_object_webi.prog.abap b/src/zabapgit_object_webi.prog.abap
index 4c5d35dc2..a69100167 100644
--- a/src/zabapgit_object_webi.prog.abap
+++ b/src/zabapgit_object_webi.prog.abap
@@ -179,6 +179,11 @@ CLASS lcl_object_webi IMPLEMENTATION.
 
   METHOD handle_function.
 
+    CONSTANTS: BEGIN OF co_parameter_type,
+                 import TYPE vepparamtype VALUE 'I',
+                 export TYPE vepparamtype VALUE 'O',
+               END OF co_parameter_type.
+
     DATA: li_parameter TYPE REF TO if_ws_md_vif_param,
           li_soap      TYPE REF TO if_ws_md_soap_ext_func,
           li_fault     TYPE REF TO if_ws_md_vif_fault,
@@ -205,16 +210,22 @@ CLASS lcl_object_webi IMPLEMENTATION.
 
       LOOP AT is_webi-pvepparameter ASSIGNING <ls_parameter>
           WHERE function = <ls_function>-function.
+
         CASE <ls_parameter>-vepparamtype.
-          WHEN 'I'.
+          WHEN co_parameter_type-import.
+
             li_parameter = li_function->create_incoming_parameter(
               <ls_parameter>-vepparam ).
-          WHEN 'E'.
+
+          WHEN co_parameter_type-export.
+
             li_parameter = li_function->create_outgoing_parameter(
               <ls_parameter>-vepparam ).
+
           WHEN OTHERS.
             ASSERT 0 = 1.
         ENDCASE.
+
         li_parameter->set_name_mapped_to( <ls_parameter>-mappedname ).
         li_parameter->set_is_exposed( <ls_parameter>-is_exposed ).
         li_parameter->set_is_optional( <ls_parameter>-is_optional ).