In SAC we are Facing error while access the data from Successfactors EC

Hi All

Please help us

we have created a connection to SuccessFactors EC and build the models using EC data.

But now we are unable to create a model using the same connection, we are getting this error.

The following error message comes from the external data service: status:401 body:[LGN0004]Accessing OData API using Basic authentication or External OAuth on non-API servers is forbidden, Action: Please switch to the corresponding API server in https://help.sap.com/viewer/d599f15995d348a1b45ba5603e2aba9b/PRODUCTION/en-US/03e1fc3791684367a6a76a614a2916de.html.