BPM can solve a myriad of business problems but is not the best fit for everything. It
may be that off-the-shelf software can meet your needs or if your project has very
complex requirements custom development may be required.
Although you will have no doubt spent a lot of money on purchasing BPM software, if
it doesn't fit with your requirements it may still be cheaper in the long run to not use
it for the current project. But there will likely be other areas of your organisation
that could use BPM software successfully.