Solution : https://service.sap.com/sap/support/notes/622079 (SAP Service marketplace login required)
Key words :
prerequisites mapping tool interaction layer, hiding assign table control, terms elm mapping tool, assignment mapping format reason, assignment popup appears, release uptill crm 4, default tab shown, constant assign tab, mapping format depends, message class crm_mktlist_map
Related Notes :
634869 | SAPKU40001: Support Package 01 for CRM 4.0 |