Accounting Date from "Process Receipts Through Lockbox" whats the source

Upon external transactions of payment going to ERP (ORACLE FUSION), we encountered an error in this important process "Process Receipts Through Lockbox" and it errored out ORA-01830: date format picture ends before converting entire input string. Checking the log files, it looks like the accounting date format was not currently same with whats in Production.

May we know where the accounting date source is being get from the system? Is there a task in Setup and Maintenance where the import date is being derived from?

We appreciate your help on this as this is already impacting many of our minor enhancements