BD52 Change Pointer. Message Type WP_PLU

Hi,

We have change pointers for the message type  WP_PLU.

Initially we have custom the field name MATKL, (MAT_FULL, MARA, MATKL)

If the user change the material group (WRCR transaction) we can display the change pointer in the table BDCP.

Now, if we delete this file name (MAT_FULL, MARA, MATKL) in the BD52 transaction and the user change the material group (WRCR transaction) the change pointer still appears in the BDCP table.

Why the change pointer is generated if it is not already configured on the BD52 transaction ?

Thanks and advance