Seaquel
SQL Server error code

SQL Server error 8604

SQL Server raises error 8604 at severity 16, which marks a problem with the query or data that you can correct.

ALTER TABLE SWITCH statement failed. Table '%.*ls' has a column level check constraint '%.*ls' on column '%.*ls' that is not loadable for semantic validation.
Msg8604
Severity16
Group8000–8999

Source: Database Engine events and errors