Section 810(1) ABGB gives an heir who sufficiently establishes the inheritance right when accepting the inheritance the right to use and administer the estate and to represent it, unless the probate court orders otherwise. Where these conditions apply to several people, they exercise the right jointly unless they agree on another arrangement.
Before a notice under section 171 AußStrG is given, the current group of authorised claimant heirs must therefore be identified. Heir status alone does not answer the question for every procedural stage. The declarations of acceptance, court documents and any order of the probate court are relevant.