Field help (WRHCOD)

The presence or absence of this option is subject to the activity code WRH.
This option is used to define, for this entry transaction, whether the header warehouse must be:

• Hidden:
  The field is not displayed on the entry screen.
• Displayed:
  The field is displayed and cannot be modified.
• Entered:
  The field is displayed but can be modified.

 If the Single-warehouse box is checked, this field automatically takes the value Entered. It is indeed mandatory to specify the warehouse in the document header.