Firstly, it is important to have a handle on how to compare. It is necessary to compare prices when calculating the ROI of different investment types from different suppliers. It cannot be guaranteed how different ERP or WMS providers have settled their pricing models. It is therefore important to assess whether the different suppliers’ price models can be compared for such a calculation.
Our clear recommendation is to always make a comparison based on a fixed price from the supplier. And we know that it can be difficult in practice to get fixed prices from suppliers, but it is not a useful ROI calculation without fixed prices. It goes without saying – if the price is not fixed, or at least roughly estimated, then the basis for the whole calculation disappears if the price were to change.
Therefore, we strongly advise to carry out the ROI calculation under the best possible conditions. This may mean that you must go a step further in the correspondence with your potential suppliers to ask for some detailed estimates – if not a fixed price.