Solution : https://service.sap.com/sap/support/notes/1265923 (SAP Service marketplace login required)
Key words : 
table  - work locations  - functional area  - hierachy levelwhen adding, prerequisites programming error solution, enter general job information, web dynpro component erc_c_req_mgmt_ui, web dynpro component, table ui element, newly created row, correction instruction section, transparentcontainer ui element, terms requisition management
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