Okla. Stat. tit. 82 § 681
In any and every case where a notice is provided for in this act, if the court finds that due notice was not given, the court shall not thereby lose jurisdiction, and the proceedings in question shall not thereby be void; but the court shall in that case order due notice to be given, and shall continue the hearing until such time as such notice shall be properly given and thereupon shall proceed as though notice had been properly given in the first instance.
In case any individual appraisal or appraisals, assessment or assessments, or levy or levies, shall be held void for want of legal notice, or in case the board may determine that any notice with reference to any land or lands may be faulty, then the board may file a motion in the original cause asking that the court order notice to the owner of such land or lands given and set a time for hearing as provided in this act. And in case the original notice as a whole, was sufficient, and was faulty with reference to publication as to certain tracts, only the owners of and persons interested in those particular tracts need be notified by such subsequent notice, and if the publication of any notice in any county was defective or not made in time, republication of the defective notice need be had only in the county in which the defect occurred.
Okla. Stat. tit. 82, § 681