Attached is the v4 of the IM 8.28 Migration Document. This is for the May GDSN 3.1.19 Large release that will be applied as follows:
- Pre-Prod - March 25
- Production - May 21
This release includes non-backward compatible changes which require migration and updates for anyone who populates the affected attributes. Some migrations will be done in IM but others will require manual intervention.
