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.