What does SAP recommend you do when you experience problems with modifying the OData API data model?

Your customer implemented all available BAdls during employee replication, but the interface behaves unexpectedly. You are validating the BAdl implementations by checking the sequence in which they are triggered during the replication.
Which sequence is correct?

Your customer needs to store employee address data for both home and host assignments. What SAP Successfactors Employee Central field supports this?

You need to map language keys from SAP SuccessFactors Employee Central to SAP ERP. Where do you define this mapping?

Your customer requires you to set up the initial load from SAP ERP HCM to SAP SuccessFactors.
Which configuration elements do you use in SAP ERP?
Note: There are 2 correct answers to this question.