Solution : https://service.sap.com/sap/support/notes/598518 (SAP Service marketplace login required)
Key words :
pp/ds planning time fence', inserting customer-specific information lines, fill columns usexit1 - usexit3, pp/ds horizon', existing information lines, relevant line category, additional solution implement, line category rowtype = 7, badi /sapapo/rrp_io_col, terms /sapapo/rrp3
Related Notes :
417776 | Product view: BAdI for column control/new columns |