Transition of the existing Balance Sheet Lessee Leases to JDEdwards

We are implementing JDEdwards Balance sheet accounting for our lessee leases and encountered an issue. We do have leases which has started 15 years back and being amortised currently out side of JDEdwards. We want to transition them as of 1stt May 2026. When we use the "AS-Of" function under R15170 it does not work well for us. The leases has undergone term changes multiple times from the date of start till 1st May 2026.

There is no way JDEdwards can account for changes in the lease terms prior to "AS Of " date and hence we run the Amortisation schedule the Lease liability balance and ROUA balance at the beginning date ( JDE AS off) does not reconcile with Amortisation schedule which we currently have (outside of JDE)