SAP Message RE_IT030 - Change of phase is not allowed

Procedure
Allowed phase changes from old legal situation to new legal situation:
From INITIAL ,,,,,,to INITIAL (2002)
From REVISION,,,,to INITIAL (2002)
From ADJUSTMENT,,,,to INPUT TAX CORRECTION (2002)
Correction items that are in the Input Tax Correction phase or the InputTax Correction Not Available phase are not converted to a phase for thenew legal situation.