ICR - Pre ICR manual documents / how to

Dears,

The Client has been doing the intercompany reconciliation process manually for a long time (many years), this process is done in Excel platform, so the ICR process in SAP has never been executed. Every month the client makes sure that the ICR documents has been manually reconciliated, before the period closing.

We need a quikly solution for all documents that has been reconciliated manually (no SAP):

1. An automatic reconciliation for all this documents with net results $0 for every customer/vendor account. (But this method can be risky for the potential quantity of documents to analyze, even more because the clients donu2019t need to review them)

2. The other solution itu2019s just not to consider documents posted before the fiscal period in which the go live will occurs (This is safer and will end with the client saving time on possible errors).

Thanks for all your help