Operations and planning are performed when one’s company fits the mold of a classic business. The system you are building suits the companies that break the mold, which is a growing number as personalization/hyper customization grows.

Can you give an example of mold-breaking?

3D print manufactures that print custom parts need to use their manufacturing and billing operation outside the mold. Unixhero provided another example, but there are a lot of examples where big ERPs aren’t the right solution and/or require a lot of money/customization/ongoing costs to make it work well beyond its total ROI.

Anything which needs detailed operations planning of the production. Larger factories and say chemical companies use standard flows of the ERP (SAP) for this.