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The Basis field is filled automatically , if the adjustment to purchase order has been generated based on the order. If needed, you can manually select the basis document from the list of supplier documents (for this, click Show all from the drop-down list). Once the order as a basis order is selected, click the Fill In ( 
) button to copy the data to this document. If, after you edited the adjustment, you want to cancel the edits, click the Fill in button – the details from the basis document will be copied to the adjustment again and will clear the edits.
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