BP is good at server side automation and not so good at UI/surface automation, if you got multi-steps at server-side across multiple systems, BP could be your best friend. UiPath is usually better and an easier choice on cost and flexibility front.

Typically ROI is calculated based on AHT - average handling time reduction and hence Opex saving based in man-hour reduction If a process is changing frequently it is not a good candidate for RPA. Ideally one should try to move from RPA to API or microservices…

Blue Prism is the most costly, and needs certifications and hence the skill level and learning curve is steep, also, the resource cost is higher. Blue Prism does not support older versions for long which means you will need to keep updating the bots and pay through the nose…