Solution : https://service.sap.com/sap/support/notes/725247 (SAP Service marketplace login required)
Key words : 
symbol number    text                      max length025              functional area           20026              funds                    20027              funds center              20028              commitment item           20029              grant                    20, terms enterprise buyer professional, text symbols, bbp_pdh_acc function group, account assignment screen, account assignment fields, bbp_f4_read_on_entry business add-, account assignment, business add-, bbp_f4_read_on_entry reason
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