Can I paid the cost of license after analysis phase ?

Hi All,

My company is going to implement Microsoft Dynamic 365. I'm very new about Micrsoft Dynamic 365. We are going to sign a contract with our supplier. 

I got one question about license please support it.

My company want paid a license after analysic phase finish ? Because If I paid a license from beginning But It don't used it. It is waste. so that Our company want to paid a license after analysic phase finish .

Anybody already worked with Micsoft Dynamic before please support this

thanks

Pham