Albertsons Library embarked on a practical effort this past year to document post-cancellation perpetual access for those electronic journal titles that had been or were part of large package purchases. Documenting entitled content was challenging and hampered by limits to accounting records maintained at the library and university; a change in the library's integrated library system (ILS); limited or incomplete access to third-party subscription agent order and payment records; and changes or the demise of consortia. Decisions were made to work with the known more recent electronic journal content purchased, and to work backwards from there. Procedures for creating standardized perpetual access documentation by title was devised for use in the ILS cataloging module as well as the library's electronic resource management system. By creating a method for documenting perpetual access, institutions are able to support claims for access purchased by the library, even as content shifts from one publisher to another.