The build-versus-buy question rarely has a clean answer, because most businesses end up doing both. The real skill is knowing which parts of your operation deserve custom software and which are better served by a tool someone else maintains for you.
Buy what is common, build what is yours
If a capability is shared by thousands of companies, such as email, payments, or accounting, buying it is almost always right. Someone else has already absorbed the cost of edge cases and compliance. Reserve custom work for the workflows that are genuinely specific to how you operate and create your advantage.
Questions worth answering first
- Does an existing tool cover at least 80 percent of the need?
- How painful are the remaining gaps, and can a process absorb them?
- Will this workflow change often, and do you need to control that pace?
- What is the total cost of ownership, including integration and training, not just the licence fee?
The hidden costs on both sides
Off-the-shelf tools carry switching costs, per-seat pricing that scales against you, and roadmaps you do not control. Custom software carries maintenance, hosting, and the responsibility of keeping it secure. Neither is free; they simply move the cost to different places.
A pragmatic pattern is to buy the commodity layers and build a thin custom layer on top that captures your unique process. You get speed where it does not matter and control where it does.