Reviews and audits shall be conducted with advance notice, except that unannounced audits may be made upon the determination of the State Auditor when they are necessary due to complaints or valid concerns. Examiners shall make every effort to work with school districts in scheduling audits in consideration of instructional activities such as statewide student testing days. The Department of Education and the school district shall cooperate fully with examiners in providing any related information requested in order to properly conduct the review or audit.