Summarising

Hi, music43 

Thanks for some_bih reply. You can try the following measure(compact).

Carriage =
SUMX(
    SUMMARIZE(
        FILTER(
            'Sales',
            'Sales'[Order Status] = "Invoiced"
            && 'Sales'[Order Carriage (GBP)] <> 0
        ),
        'Sales'[Transaction Id],
        'Sales'[Order Carriage (GBP)]
    ),
    'Sales'[Order Carriage (GBP)]
)

Best Regards,
Yang
Community Support Team

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