Lease create accounting troubleshooting tips

Summary: We're working on implementing Lease Accounting for our company. We're trying to get create accounting for Lease Accounting, but we're not getting much on the create accounting exception report. It's not telling us the segments it is generating. It just gives us a transaction number, but we don't know where we can search on the transaction number to gain better insight. Below is the error:

Subledger accounting couldn't retrieve a value for the accounting flexfield
account rule. Details: The GL account can't be derived by account rule.
Review the account rule definition and the extract source values, if applicable,