You must drop all subscriptions for a MobiLink user before you drop the user from a remote database.
Connect to the database from the SQL Anywhere plug-in as a user with DBA authority.
Locate the MobiLink user in the MobiLink Users folder.
Right click the MobiLink user and choose Delete from the popup menu.
Connect to the database as a user with DBA authority.
Execute a DROP SYNCHRONIZATION USER statement.
The following example removes the MobiLink user named SSinger from the database:
DROP SYNCHRONIZATION USER SSinger
For more information, see DROP SYNCHRONIZATION USER statement [MobiLink].