Solution : https://service.sap.com/sap/support/notes/1001642 (SAP Service marketplace login required)
Key words : 
creating/changing fixed pegging relationships, system requirement aix - livecache/maxdb 7, sequence-dependent setup activities, installation file lc750039a4114_0-nnnnnnnn, function module /sapapo/om_snp_capa_get, function module /sapapo/om_snp_order_get, function module /sapapo/om_delt_get_remov_vpl, execute transaction /sapapo/om03, 1 lca build 14 patch level 001, fixed pegging relationship
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