Field help (ATYVALDEF)

This field allows you to enter a calculation formula to assign a default value to fields of this type

An example can be seen in the CRY type, which defines the country code : the GPAYS variable, which defines the local country, is proposed as the default value for all the fields of this type. This default value is automatically proposed in the screen fields using this type of data. However, if a field using this data type has its own default value in the screen, it's this that will be used; in this case, the default value for the data type is ignored.