Web Services reliable messaging is not supported in SAP AS 7.0?
In 7.1 documentation, I find that one enables a webservice for reliable messaging by writing @RelMessagingNW05DTOperation annotation.
However I'm shocked to find that in 7.0 documentation, it only talks about some PL/SQL like code (LUW) that one has to implement to have reliable messaging (http://help.sap.com/saphelp_nw70ehp2/helpdata/en/46/9743916d1115ece10000000a114a6b/frameset.htm). As I'm not familiar with LUW, can you confirm that the developer himself has to handle creating sequences, reordering them and guaranteeing exactly once delivery? And the LUW code shown in the link, does it do all this?