SAP Message WRF_MRM_ASSIGN016 - Incorrect key in assignment test group &1 &2

Diagnosis You want to create a new assignment test group. To do so, the "CompanyCode" and "Assignment Test Group" fields have to contain at least onecharacter. Procedure Enter a valid company code in the "Company Code" field and a namecontaining at least one character for the assignment test group in the"Assignment Test Group" field.