Regarding Rewrok Production Order

Dear Sir,

I have created a rework prodution order by using Co07, without material.In settlement i have mention cost ceneter.I have put the production order BOM by the required materials.Now my problems i sthat while doing confirmation by co11n, in goods movement Tabs, no material is coming. Although I have

activated the Backflush and Auto-Gr in production sechduiling profile

Please hel me why the backflush isnot occuring.

Thx

Laxmi