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Other changes

External IDs
Many of the tables in the V1.1.1 database contained fields called "External ID" (EXT_ID). These fields were not used by V1.1.1, but are used in V2.1. However, the migration process needs to use these fields, so if you have used them to store any information, that information will be lost.
Age of historical data
Change history is maintained in the V1.1.1 database for the following entities: The migration process does not migrate all of this change history data. For each item in an historical table, all history for the period of the three months preceding the migration is retained. For older data, history is only retained if there is not a more recent entry for the item in question.

For example, if you have made changes to the information recorded about your "Sales" division once every month for the last 6 months, only the last three history items will be migrated. However, if you have not changed the information about your "Manufacturing" division for 6 months, just the record from 6 months ago will be migrated. This history data is not used in any reports in V1.1.1 or V2.1.


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