Letter ledger entry lines

POST https://app.pennylane.com/api/external/v2/ledger_entry_lines/lettering

This endpoint lets you letter ledger entry lines together. All received entry lines will be lettered together. If a passed entry line is already lettered, then the lettering will be applied to its associated lettered entry lines as well.

This endpoint requires one of the following scopes: ledger (DEPRECATED), ledger_entries:all

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ledger scope will be deprecated on 31/03/2026. You can use ledger_entries:all scopes instead.