When does your business need custom software?
The sign is not having too many tools, but having to connect them manually.
Start with the process, not the technology
If you copy information between spreadsheets, check stock manually or repeat the same operations every week, map the entire workflow. Who enters the data? Where do mistakes happen? What information does each person need? This map helps define a concrete problem before discussing solutions.
Custom or off the shelf?
An existing tool can handle common processes well. Custom development makes sense when requirements are specific or systems need to be connected. Compare maintenance, data export options and the time required to learn the tool too.
A useful first version
Choose a process with an observable result: avoiding duplicate data entry or preparing an order in one place. Decide who will test the tool and how you will know it works better. A focused first version lets you learn before expanding the project.