EWS
2 articles tagged EWS.
EWS retirement in Exchange Online: find EWS apps and set EWSAllowedAppIDs
Find every app that still calls Exchange Web Services, build an EWSAllowedAppIDs allow list and set EWSEnabled so critical apps keep working while EWS is switched off from October 2026.
Migrate EWS apps to Microsoft Graph before Exchange Online turns off EWS
Move mail, calendar and contact integrations from EWS to Microsoft Graph: map operations, replace impersonation with scoped permissions, convert stored IDs and plan for gaps.