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Note that the initial synchronization may take some time, depending on the amount of data you have in SalesForce.com. The status of the synchronization, including its successful completion and any problems, are logged in the History grid.
If data is removed in one system it will not be removed in the other. For example, if you delete a customer object in SalesForce.com, the corresponding customer object will not be deleted in LAC.
Performing a full re-synchronization
If necessary, you can force a full re-synchronization using the Re-synchronize button, which will re-synchronize all data at the next regular update interval. Full re-synchronization is needed only in rare cases. For example, you may want to do a full re-synchronization if there are significant changes to your original data set in SalesForce.com, or if LAC enhancements provide new synchronization features you want to take advantage of. Re-synchronization will not remove data from LAC; however, if customer data has been deleted from SalesForce.com since the last full synchronization, that Customer object in LAC will no longer have any relationship to SalesForce.com data.