The correct docket number format is crucial for successfully eFiling. The format is as follows: YEAR- SPACE- CA-SPACE-SIX DIGIT DOCKET NUMBER-SPACE- EXTENDER. Thus, the first case filed in 2005 in Civil II would read: 2005 CA 000001 B. For the 450th 2000 case that was filed in Civil II, the docket number would be 2000 CA 000450 B. If the case was a medical malpractice case and certified to Civil I from Civil II, it would read: 2005 CA 00001 M; if it was a real property case (formally "RP"), it would read: 2005 CA 000001 R(RP).  On occasion, a case has been assigned a docket extender that is different than the case type for which the extender is used. You can check for the proper extender by looking at Initial Scheduling Orders issued after May 17th 2005 and from the court’s public access docket site https://www.dccourts.gov/pa/.