If an account posting rule doesn't have any conditions or default ledger account, and a...

Comprehensive and Detailed 150 to 250 words of Explanation From Workday Record-to-Report/Course Guide/topics:

When a transaction invokes an account posting rule that has neither a matching condition nor a default ledger account, Workday has no configured result from which to derive the journal line's ledger account. The operational journal is consequently generated with that line in error and no ledger account. The transaction and its accounting can then be investigated through the applicable error reports and posting-rule configuration.

Workday does not arbitrarily select the first account in the account set because doing so would violate accounting policy and could materially misstate the ledger. The source transaction is not necessarily stopped immediately with a critical validation because accounting derivation and business-process validation are separate controls. Additional approval also cannot supply the missing account. Depending on journal-source suspense configuration and its threshold, some journal loads may use suspense processing or fail according to the permitted error level, but the posting rule itself still lacks a valid ledger-account result. The administrator should add an appropriate condition and resulting account or configure a defensible default, test the rule, and reprocess the errored accounting. Therefore, the direct outcome described in D is correct.

Official Workday reference: Workday Education - Accounting Journals ; topics: account posting rules, missing ledger accounts, and journal error handling.

===============