CRM Server Based Integration with O365- The Autodiscover service couldn't be located.

[ktsap2022]

We have Server based groupware integration enabled with Microsoft Office 365 Exchange Online server for long time , and just recently in March integration is failing as 'autodiscover service is not initialized'.. error we are seeing from SAP CRM Groupware connector logs is given below ..

has anyone noticed this error recently? anything changed from Microsoft exchange server?

FATAL EWSSyncCore.ExchangeServiceFactory get_ExchnageServiceInstance [] - Failed to Instantiate the Exchange Service

Exception: Microsoft.Exchange.WebServices.Data.AutodiscoverLocalException

Message: The Autodiscover service couldn't be located.

Source: Microsoft.Exchange.WebServices

at Microsoft.Exchange.WebServices.Autodiscover.AutodiscoverService.GetSettings[TGetSettingsResponseCollection,TSettingName](List`1 identities, List`1 settings, Nullable`1 requestedVersion, GetSettingsMethod`2 getSettingsMethod, Func`1 getDomainMethod)

at Microsoft.Exchange.WebServices.Autodiscover.AutodiscoverService.GetUserSettings(List`1 smtpAddresses, List`1 settings)

at Microsoft.Exchange.WebServices.Autodiscover.AutodiscoverService.InternalGetSoapUserSettings(String smtpAddress, List`1 requestedSettings)

at Microsoft.Exchange.WebServices.Autodiscover.AutodiscoverService.GetUserSettings(String userSmtpAddress, UserSettingName[] userSettingNames)

at EWSSyncCore.ExchangeServiceFactory.GetExchangeOnlineUrl(ExchangeCredentials credentials, String Email)

at EWSSyncCore.ExchangeServiceFactory.get_ExchnageServiceInstance()