The experiment was conducted as a warranty provision case study.The final sample consists of 122 highly experienced German auditors.Participants evaluated the reasonableness of a client‐biased estimate,the probability of insisting on an adjustment, and the amount of apotential adjustment after having received information regarding twomain assumptions of the estimate. Participants also indicated the totalamount of additional audit hours needed to reach a final conclusion onthe KAM subject and decided on how to allocate these additionalaudit hours on three different audit procedures: test of details, analyticalprocedures, and documentation.