@rsantos IFS will not stop you from starting the Shop Order. However if you have enabled backflush of material from work center inbound locations, you will not be allowed to receive any finished product in stock as longs as there not enough material to be backflushed.

Also, in IFS Cloud, you can easily spot material shortages in the Visual Shop Order Materials planning screen.

If you really want the users to not be able to Release / Start a Shop Order when there’s not enough material in the warehouse, I guess you would need to do it with a custom event. Anyways, it would be quite tricky to implement this. What do you do as if you have the same raw material needed for 5 different shop orders to produce different parts, but your raw material is enough for only 2 shop orders? How do you program in the event which Shop Order is allowed to be released?

Maybe @Björn Hultgren might have a better answer on this one.

Thanks @Marcel.Ausan for the insights, you have covered everything 

@rsantos I m interested in knowing the context, can you please elaborate the business requirement behind this request please? So that we can understand it better.

In addition to what @Marcel.Ausan said, which is all very relevant, have you looked into the automatic availability check? It won’t stop you from releasing shop orders, but at least it should give you warnings and planning alerts.

https://docs.ifs.com/ifsclouddocs/23r2/GeneralIFSApplications/AboutAvailabilityCheck.htm