Hello Vitaly,
I tried this way, but couldn't get the desired result. I would appreciate if you send me the screen of your PMP customizing.
Does system calculate effeective interest rate and write-off amount correctly according to IAS39?
And I also wonder how to calculate NPV via TPM60 not using discounting (e.g. when it is not necessary and the balance value is just the difference between purchase value and costs). Did you find the way?