Assignment updates for Promote actions behave differently in Manage Job Offers than in Core HR

Summary:

It has been identified that the Promote action behaves differently when processed via Manage Job Offers compared to Core HR.

Via Manage Job Offers > Promotion there is an update to the Assignment record with effective start date that does not include the more 'static' data on the earlier employment record (e.g. Probation Period).

When a Promotion is processed via My Client Groups > Promote in Core HR, the assignment records only updates the 'delta' fields and leave the others unchanged.

Currently the client is processing via Manage Job Offers and have to re-enter all this static information which is time-consuming.