SAP Message PV424 - Error when determining the budget year: endda = &1, begda = &2

Diagnosis It was not possible to determine the budget year (fiscal year). Theperiod version is stored in table T77S0 in the field VMBUD - PERID. Theperiod version is required (with tables T009 'Fiscal year variants' andT009B 'Periods of fiscal year variants') to determine the budget yearvalidity period. An error occurred during this process. Procedure Check the entries in tables T77S0, T009 and T009B. You may proceed withthe conversion after the necessary corrections have been made.