Ala. Code § 10A-17-2.11

In an action or proceeding against a decentralized unincorporated nonprofit association, a summons and complaint shall be served on the agent authorized by appointment in Section 10A-17-2.10 to receive service of process, on a person authorized to administer the affairs of the nonprofit association, or in any manner otherwise provided in the Alabama Rules of Civil Procedure. If, after reasonable efforts to accomplish service through the methods provided in this section, service cannot be accomplished, then service may be made on a member of the nonprofit association.