This happens a lot, especially in the SaaS sector. However your purchasing people or IT people (or yourself) need to consider this up front as due diligence. If

This happens a lot, especially in the SaaS sector. However your purchasing people or IT people (or yourself) need to consider this up front as due diligence. If you don't do it, you're a wally not a license martyr. Portable, open formats are more important than the mechanisms.