Checksum verification can be added to the FTP task to ensure that the source file is exactly the same as the destination file after a transfer completes successfully. This option is available on the Put, Get, Mget, Manual Get, and Manual Put elements. Both the CRC32 and MD5 algorithms are supported with the default and recommended algorithm being MD5. Errors may occur if the transfer was performed in ASCII mode, if the FTP server doesn’t support checksum verification or if the calculated values do not match.