First let us say that the more carefully a project is defined, planned, and budgeted, the fewer hidden costs for that ERP implementation are likely to occur. When creating your plan, make sure that you’re clear on what’s covered in each vendor agreement you sign, as well as what aspects have an add-on cost if you choose to use those services.
Staff pay overages can happen when more in-house time is needed than anticipated, especially if overtime must be paid. Other hidden costs include when hardware needs to be upgraded, which can happen with on-premise systems, and if a network needs to be expanded. If you are using an on-premise solution, also double-check the costs of data backup and storage. Cloud solutions have the key benefit of easy scalability, which can help your company not pay for any more than what you need, with the backup and storage of data often part of the agreement.