Seaquel
SQL Server error code

SQL Server error 4942

SQL Server raises error 4942 at severity 16, which marks a problem with the query or data that you can correct.

ALTER TABLE SWITCH statement failed because column '%.*ls' at ordinal %d in table '%.*ls' has a different name than the column '%.*ls' at the same ordinal in table '%.*ls'.
Msg4942
Severity16
Group4000–4999

Source: Database Engine events and errors