SAP Message EL208 - Period key &1 in function module &2 could not be found

Diagnosis It is possible that no period key was entered for a PROFEST value inthe installation structure in which the corresponding register isallocated, or that the period key does not exist in TE871. It alsopossible that the period key was not correctly transferred from theprogram being called up. Procedure Assign a corresponding period key to the PROFEST value and/or checktable TE871.

302441	Rate data screen left with error message EL208