Migration settings when switching to another Zero Profile mode

User Settings data is stored in different formats for different Zero Profile modes. When switching an existing global User Setting or application to another Zero Profile mode, use its Migration settings to determine what should happen to data stored in the previous format.

Migration Setting "Ignore"
Effect:	The old data continues to exist, but it is not used or updated. When users start using the switched User Setting, they will initially get the default settings and they will gradually build up a new set of data according to the new Zero Profile Mode. Eventually, two sets of data will exist for each user for both Zero Profile Modes. In that situation, switching the Zero Profile mode results in a switch to the stored settings appropriate to the current mode.
Other consequences:	Additional data remains in the system and, when not using User Settings caching, will be transferred at various moments (session logon, logoff and, refresh; and application start and end). This could potentially impact performance.

Migration Setting "Ignore"

Effect:

The old data continues to exist, but it is not used or updated.

When users start using the switched User Setting, they will initially get the default settings and they will gradually build up a new set of data according to the new Zero Profile Mode.

Eventually, two sets of data will exist for each user for both Zero Profile Modes. In that situation, switching the Zero Profile mode results in a switch to the stored settings appropriate to the current mode.

Other consequences:

Additional data remains in the system and, when not using User Settings caching, will be transferred at various moments (session logon, logoff and, refresh; and application start and end). This could potentially impact performance.

Migration Setting "Remove"
Effect:	All the old information is permanently deleted. At their next logon, users get the default settings and will have to re-do any changes they want in their profile. These changes will then be stored according to the new Zero Profile Mode.
Other consequences:

Migration Setting "Remove"

Effect:

All the old information is permanently deleted.

At their next logon, users get the default settings and will have to re-do any changes they want in their profile. These changes will then be stored according to the new Zero Profile Mode.

Other consequences:

Migration Setting "Apply/Convert and remove"
Effect:	The existing data is converted into the new format. The data is no longer available in the previous format. When users next log on, they will have the customized settings that they already had.
Other consequences:	The new User Setting may store more information than would strictly be necessary. This additional data will be transferred at various moments (session logon, logoff and, refresh; and application start and end).

Migration Setting "Apply/Convert and remove"

Effect:

The existing data is converted into the new format. The data is no longer available in the previous format.

When users next log on, they will have the customized settings that they already had.

Other consequences:

The new User Setting may store more information than would strictly be necessary. This additional data will be transferred at various moments (session logon, logoff and, refresh; and application start and end).