SAP Message CBIH843 - Incident/accident log entry &1 is valid only in period [&2; &3]

Diagnosis
You cannot assign a version to &V1& because the incident/accident logentry is valid only in the closed period from &V2& to &V3&.
Versioning is possible only for entries whose validity period isunlimited, meaning they are valid until 31.12.9999.

Procedure
Check whether a version exists for the data record you selected, whosevalidity continues until 31.12.9999. To do this, choose a key datelater than &V3& in the initial screen.