How to force Operation Time to be > 0 in BOM Operations?

Hello,

While creating BOMs with Operations sometimes I forget to set the Operation Time in Operation table to a value greater than 0. Because of this at time of Manufacturing using Work Order, I get the error Operation Time is 0 and I cannot do work on the Work Order.

I read in the Forum that we have to recreate the BOM with such a problem and all the dependent BOMs. This is very tiresome and time consuming.

Instead of that I want to set rule in Mandatory Depends On.

How to set a rule that will not save a BOM if Operation Time in any of the operations is <= 0.

TIA

Yogi Yang