SAP Message ABADR075 - Enter a reference field before calling up the "Possible entries" function

Diagnosis You want to assign a constant to a characteristic. To display the"Possible entries" for the constant, the system first needs to knowwhich characteristic you want to maintain a constant for. Procedure First specify the characteristic for which you want to assign aconstant, and press ENTER. Then display the "Possible entries" to seethe possible constants.