No serial Number allows to select at DMR processing screen

No serial Number allows to select at DMR processing screen

Issue :- 

System not allowing to select serial no at DMR processing screen.

Resolution :- 
Check below points to resolve the issue :- 
A) Does part is serially tracked or not 
B) SN code is activated at Part master level 
C) At Job entry level itself , serial no is activated / generated or not
D) Operation master level , Serial no assigned or not ..

By answering above question , you can resolve the issue.

Regards,
Abdulsamad Dalal