When attempting to save edits that have been made to a Job definition in JAMS, one of the following errors may be encountered:

Job update failed
No mapping between account names and security IDs was done

Job update failed
Some or all identity references could not be translated.

The error indicates that an Access Control Entry for a User or Group within the Security Tab of a Job does not map to an existing User or Group (these are typically displayed as <unknown>). Verify any Accounts and remove any Users (credentials) or Groups that no longer exist.