Supplier Invoices

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Hi everyone, 

I've just upgraded my Sage to version 30 from version 28 and I'm having difficulty finding out where the Supplier Invoices tab is to create an invoice.  The Customer's tab is where it normally is on the left but no Supplier tab and certainly no Batch Supplier invoice. Anyone got any ideas - think I'm going nuts. 

best regards and thanks in anticipation 

Carole