Production order confirmation CO11N workflow

Dear All,

I need to send the notification during the CO11N Order confirmation on particular operation steps i.e there are 24 steps for confirming the Finish product as 0010/0020/....0240. I need to send the notifications to individualizes suppose on

confirmation of operation 0040 to Agent A1 ,

confirmation of operation 0080 to Agent A2 ,

confirmation of operation 0150 to Agent A3 and so on . How can we map this workflow scenario ?

Your contribution is highly appreciated.

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Regards,

Rahul Singh