Okla. Stat. tit. 12, § 12-1860: Initiation

A. A person initiates an arbitration proceeding by giving

notice in a record to all the other parties to the agreement to

arbitrate in the agreed manner between the parties or, in the

absence of agreement, by certified or registered mail, return

receipt requested and obtained, or by service as authorized for the

commencement of a civil action. The notice must describe:

1. The general nature of the controversy; and

2. The remedy and alleged damages sought.

B. Unless a person objects for lack or insufficiency of notice

under subsection C of Section 16 of this act not later than the

beginning of the arbitration hearing, the person by appearing at the

hearing waives any objection to lack of or insufficiency of notice.