1) DZ is customer payment. i understand. when i do clear customer downpayment the doc type is DA (customer document). what does it mean customer doc? it is credit balance for this doc type after i do f-39.
2) what is the difference for RV (invoice/creditnote) and D1,D3,D5,DI,DR (customer invoice).
3) what tcode to create RV and D1,D3,D5,DI,DR.
4) D2,D4,DG customer credit memo. what tcode to create these doc type?