Penn. C.C.R.C.P. 205.2(b)
Each complaint, praecipe or other document commencing an action shall have attached to it a cover sheet in the form set forth below, which shall be served with the complaint, praecipe or other document commencing an action upon all other parties.
Penn. C.C.R.C.P. 205.2(b)
Comment: If an action is commenced without attaching such cover sheet, the prothonotary shall accept the document for filing, but shall promptly thereafter notify the lawyer or party filing the action to file a cover sheet. The Prothonotary, in such notice, shall provide the lawyer or party with a form of cover sheet and a copy of this Local Rule. If the lawyer or party shall fail, within twenty (20) days of the mailing of such notice, to file a cover sheet, the plaintiff may not proceed further in the action until the cover sheet is filed, but this rule shall in no way affect the obligation of the plaintiff to serve the original process.