Error: 'Error importing the finder file: The conversion of the nvarchar value '12345678901' overflowed an int column. The statement has been terminated.' when uploading a finder file with a 10 digit finder number + check digit.
Adding a finder file with an 11 digit finder number including check digit (10+1) gives an error on upload: 'Error importing the finder file: The conversion of the nvarchar value '10101781358' overflowed an int column.The statement has been terminated.' This occurs when you try to upload the finder file. This is an exclucive issue for 10 digit finder numbers with the check digit enabled and does not affect finder numbers of different lengths.
Download and install the latest version and patch, if applicable.