OTL DFF sync with Project Costing

HI All,

We had a requirement to sync Timecard DFF with the project expenditures DFF. We are using the values in DFF for calculation of the cost for that expenditure from timecard.

Currently, we have a logic to sync th DFF in case any updates are made to the approved/interfaced timecard.

What is the best way to handle the retros since our client is expecting a reversal of original line with old DFF and a new expenditure line with new DFF values.

Logged SR with Oracle, but that has gone into enhancement request.

Thanks