X_LEDGER_UNBALANCED
Means
a ledger posting does not sum to zero in every currency
Typical cause
the debits and credits of one posting differ in at least one currency
Fix
entries: [{ account: 'cash', amount: { minor: -500, currency: 'EUR' } }, { account: 'revenue', amount: { minor: 500, currency: 'EUR' } }] — in the enqueue of the ledger job: every currency nets to zero