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Attribute combination settings:
Checked - This option or combination is available. Especially useful in a '2-dimensional' attribute set-up, where there is more than one selection list and not all combinations are available.
SKU - The PRONTO product code for the 'child'/attribute combination.
Create Line Notes - Tick this box if the Child product code/SKU has not been set up in PRONTO, but the option should still be available for sale. In this case, the Master code is added to the order, with the Attribute Value as a note line.
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