Material Transactions Not Created for a Sales Return

 Hi,

A sales order is returned. Its not clear that how the end-user processed the sales return. Status of both Header and lines of sales returns are closed.

A Credit Memo is created and posted in AR against this Return. But a strange thing is that there are NO Material Transactions for the Item, returned through the Sales Return.

Nothing is visible in Transaction Interface, nor in Temp Transactions.

No clue of the RMA under Receiprts, Receiving Transactions, Transaction Status Summary etc.

But it is showing 'Pending Receiving' under 'Inventory Accounting Period'  -- Pending TAB.

What can be a reason and where can we find the missing transactions and how to resolve the problem?