Between November 2020 and May 2021, Pearson textbooks were made available to UK and Ireland customers for purchase with 0% copy and download rights. Pearson revoked this policy in May 2021, and all affected Pearson titles in Ebook Central now have 5% copy and print allowances. Customers do not need to do anything to receive this 5% allowance: all copies of affected titles purchased at 0% DRM limit have now been raised to 5%; all new purchases will automatically have the 5% allowance applied.
In order to enable the original DRM change, ProQuest Ebook Central created an additional DocID for affected Pearson titles, which caused customers some inconvenience around extended access, MARC record handling, and other title administration. Some customers switched to the new DocID, and some customers now have two different DocIDs – and 2 different URLs – for the same title.
As of 25 August 2021, ProQuest has brought these two DocIDs together so that customers now have a single URL. 
If you owned Pearson Education titles under the new docID that was created to enable the original DRM change, those titles have been updated back to the original records, so your doc ID has changed. For this reason, you will need to update your URLs back for these titles in your catalog, reading lists, link resolvers, and discovery tools. Linked below, you will find a mapping of the docIDs that have merged to facilitate this change for you
Pearson DocID Mapping.xlsx
If you would like to obtain MARC records for the new URLs, you can use the Title Match feature in LibCentral to generate MARC files from the provided docIDs. To do so, please follow these instructions for title match. From the results screen, select "Export Matches" and export in your preferred MARC format.

Patron bookshelf links and annotations are not moved to the new docID. These will appear in the patron's bookshelf the same as a book that has been removed from the platform, as described in the following article: 
Ebook Central: What happens to bookshelf item and notes when ebook is removed from platform?

If you have questions or require assistance, please contact Ebook Support.