Please be advised that starting 1 March 2023, OCLC will no longer support the OAuth UserAgent flow for client applications. This change is necessary for OCLC to complete the process of aligning best security practices in the new OAuth 2.0 community.
In September 2019, OCLC announced support for Authorization Code PKCE as a replacement for OAuth UserAgent. Most customer applications have migrated to this flow already. If your institution still uses OAuth UserAgent, please make the update to use the Authorization Code PKCE flow no later than 1 March.
Customers with concerns or questions should contact OCLC Customer Support.
