Look at the two programs importad.sas and importpw.sas in SASHOME/SASFoundation/9.4/samples/base.
There you can see how external data is prepared for syncing with the metadata. Use the "extract" part to create the normalized database of users, and one of the tables will contain the emails as currently stored in metadata. Put your new emails in there, and run the sync off that.
Look at the two programs importad.sas and importpw.sas in SASHOME/SASFoundation/9.4/samples/base.
There you can see how external data is prepared for syncing with the metadata. Use the "extract" part to create the normalized database of users, and one of the tables will contain the emails as currently stored in metadata. Put your new emails in there, and run the sync off that.
The SAS Users Group for Administrators (SUGA) is open to all SAS administrators and architects who install, update, manage or maintain a SAS deployment.