The following error message appears on attempt to synchronize an Office 365 account in CCP:
DeltaLink older than 30 days is not supported.
In order to avoid full synchronization of an Office 365 tenant, Microsoft provides a differential hash, known as DeltaLink. Recently, the TTL of the DeltaLink was changed from unlimited to 30 days.
Software-related issue #APSA-19622: "Azure AD GRAPH API Error: 'DeltaLink older than 30 days is not supported.'" has been addressed to Odin Development team.
Software-related issue #APSA-19622 has been already fixed in the Office 365 18.1 package version. Refer to Office 365 18.1 for additional details.
Please contact TAM or email@example.com in order to discuss and apply the workaround for the affected customer accounts.