copy the compay code 0001 to own compay code

Hi,

when i copy the compay code 0001 to own compay code i am geeting below error while save company code.

Message no. TK455

Diagnosis

The value "12 " was entered in the field "REICHWEITE".

This is not possible because it is a numeric field where only numbers may be entered.

The length of the field is 000003.

System Response

The entry was not accepted.

Procedure

Enter only numeric values in this field.