Whether the claim for pre-litigation attorney fees was sufficiently substantiated under the ZPO.
No. A mere total amount and reference to an invoice were insufficient; the claimants had to concretely plead the facts showing necessity, appropriateness, causal relation to the claim, and lack of coverage by party-cost compensation.
Under the adversarial system, the claimant must state the decisive facts in the statement of claim. The court cannot reconstruct the factual basis from annexes alone. The invoice entries did not allow assessment of which expenses served enforcement of the claim against the insurer and which were covered by procedural costs.