Problem

Transfer rejected by the partner: error 639 ACR 200

Text file or binary file

CFTSEND set with FLRECL=0

Resolution

The default value for the FLRECL (when Variable or Undefined file format) has changed from 512 to 4096 from 3.2.4 SP2

This change has been made to enhance the transfer performance with binary files.

For existing flows where the remote is using a lower value you may face this error.

With a CFT as the remote partner, the error will show-up only if the CFTRECV is set with the FCHECK = YES

The solution is to set an explicit value in the sender FLRECL (512 was the previous default value) or to get the remote partner to allow up to 4096 for variable or binary files.