Issue with the Project Process Configurator

We are using amount based revenue method based on a Project process configurator where we have defined a custom formula with a slight variation for the percentage complete Revenue calculation.

On Contract line project is linked (without task reference). Our requirement is to calculate the revenue for all the sales transactions throughout a period and at the end of the period recalculate revenue based on the PPC, developed for % Complete, and have an adjustment revenue line.

But as we have linked PPC based revenue method on the Revenue plan with the contract line, every time revenue is recognized for sales, % Complete revenue calculation triggers and adjustment Revenue lines are getting created.