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By default all 'unapplied' payments that have been received entered into OFBiz from the customer will be available for selection even if they have not yet been flagged as formally 'Received'. This means that these are payments that have not already been linked to another invoice. If only part of a payment amount has been linked to an invoice then the remaining amount is left available to be allocated to another invoice. Also note that a single invoice could be paid by multiple payments being applied to it.

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