Hi Anirban,
I already explained regarding backflush in your earlier thread.
Backflush: If you are doing Goods issue through backflush during confirmation if stock of the issue materials is not available then errors will be generated and system will post this error's to COGI where some one has to do the analysis and correct the error's. Instead of doing all this activty in COK4 confirmation parameters for the combination of Plant and Order ype - In individual Entry General Tab - Under Error Handling/Logs if you check Goods Movement and Termination of Goods of Incorrect Goods Movement then confirmation will not be posted if errors are available due to stock issues for backflush materials. System will pop to rectify the issues.
For control on sequence in confirmations for the combination of Plant and order type - under Generally valid settings - Operation sequence - Select "Error when operation sequence is not adhered".
With this setting system will allow to confirm the operations in sequence.
For Eg: user confirmed 0010 operation for 20 qty. If user tries to confirm operation 0030 then system will throw the error message.
Thanks & Regards,
Ramagiri