System is not taking actual confirmed quantity in CO11N

Hi,

We have a scenario where in routing is having below operations with activity units and planned quantity as 365, 365, 365 for operation 1 for activity units std man minutes, shop fixed minutes and shop variable minutes subsequently-

routing.png

A production order is created using this routing where the operations are copied with planned activity minutes from routing

prd-order-1.png

prd-order-2.png

While confirming the activity units in CO11N for the same order/operation 0010 system is not allowing the enter actual activity minutes less than planned activity minutes

Here in the below screenshots for activity unit std. Man minute, by default 365 value is coming from routing. when I am trying to change the quantity to 200 system is changing it back to 365 again.

co11n-1.pngco11n-2.pngco11n-3.png

Please let me know if any configuration needs to be done for entering less value of confirmed quantity.

Thanks