Half posting

Half Posting: when posting sales invoice / credit memos, some of the related tables are not updated. for example: the dimension, posted invoice tables will be updated but cust ledger will not be updated.

We are facing the above problem for quite some time. I want to know whether this issue is common to other users of navision, and what are the possible solutions for this ?

This can only happen if someone has modified the code. It means that somewhere there is a COMMIT being called in the posting routine somewhere. You need to contact who ever modified your system, and get this fixed ASAP, it is not good at all.