Writing multiple B2b messages in to single outbound X12 EDI files in OCI GEN3

Summary:

Not able to append the multiple messages into single file at the time of writing to FTP location with B2B trading partner mode on. For outbound integration we are not able to write multiple B2b messages in the single EDI file. Default B2b send integration generated at the time of configuring transport in trading partner level is not giving option to append the file at the time of invoke write file. Also For writing B2b message to target file we have set B2b trading partner mode on in FTP adapter which is not giving any option for appending messages to