WO Over Issue & Completion

Hello,

I want to know, will the system will allow to Over Issue & Over Completion of a Work Order when we have a Batch BOM. And also want to know how the Variance will work in this scenario.

For Example. Batch BOM= 45000 Each

WO Order Qty=45000 Each.

Now I want to do a Over Completion of WO with Qty= 50000, then is system will give any warning or Error? Is there any setup for this? And what type of Variance will this be considered?

Also if I am using superbackflush, then will the system will calculate the Issue qty automatically on the screen or user needs to do a Manual Overriding.