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FTP sender channel errors FTPEx:520 and FTPEx:426

Aug 21, 2017 at 06:45 PM


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Hi All,

Need your advice in resolving the below issue,

While picking the files FTP sender Communication channel is throwing below errors,

Error: FTPEx: 520 unexpected reply code Control connection prematurely closed by server.

Error: FTPEx: 426 unexpected reply code file transfer failed.

1) In the first poll file is picked up by the channel and processed through PO but the files still exists in the FTP server, and communication channel is logging with FTPEx: 520, FTPEx: 426 errors.

2) As we have enabled the duplication check option in the sender channel,duplicate file in FTP is being ignored by the channel in the next poll and channel going to error mode.

3) Due to channel error remaining files in the FTP are also not picking by channel.

Note: Files which are getting duplicated are just less than 15kb in size only.

Channel Configuration:



channel1.png (31.4 kB)
channel2.png (28.6 kB)
channel3.png (33.4 kB)
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