Old version for interfface can be made with ZWPP13R based on files found in dynaysys datahub.
This interface can be used as a workaround for MRP planned independant requirements and for Long term Planning also.
procedure to be used for WP1 :
https://docs.google.com/presentation/d/1_ywoplx5_CoYFvSb39xc6LLXq92lkB1kGAlQfmvuGbw/edit#slide=id.g285e2b07d6_1_76