ALV field, max length?

Hello all,
When entering data on the screen into the ALV, field VALID will allow only 128 characters. But the field has 255 characters.
Is the max field lenth in an ALV 128 characters?
The fieldcat has these values for field VALID:
DATATYPE        char
INTLEN               255
DD_OUTLEN     255
The Layout has just 2 fields populated, ZEBRA and GRID_TITLE.
Here is the bits of code I'm using.
DATA: w_container TYPE scrfname VALUE 'ZCONTAINER1',
      w_grid TYPE REF TO cl_gui_alv_grid,
       w_custom_container TYPE REF TO cl_gui_custom_container.
DATA: i_alv TYPE TABLE OF zalv_zfxxu004. " ALV table - displayed
DATA: w_outtab TYPE zalv_zfxxu004.           " ALV table row
*zalv_zfxxu004 is a structure with the following fields.
*AUFNR CHAR     12
*BUKRS CHAR     4
*KTEXT CHAR     40
*VALID CHAR     255
           Create an instance of the container displayed on screen 100
CREATE OBJECT w_custom_container
         EXPORTING container_name = w_container.
           Create an instance of the grid displayed in the container
CREATE OBJECT w_grid
         EXPORTING i_parent = w_custom_container.
CALL METHOD w_grid->set_table_for_first_display
    EXPORTING
      i_bypassing_buffer   = 'X'
      is_layout            = l_layout
      it_toolbar_excluding = lt_exclude
    CHANGING
      it_fieldcatalog      = il_fieldcat
      it_outtab            = il_outtab.
Any thoughts?
Thanks
Bruce

Hello,
Check SAP note 857823.
This is the standard system behavior and cannot be changed.
Regards,
David

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