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1 PECOS P2P will automatically assign a unique purchase order number to each order request upon final approval. If your organisation has enabled **Manual PO Numbering**, PECOS P2P will not automatically assign a PO number and it will be necessary to manually enter a purchase order reference.
2 A 'PO Number' field will appear at the top of the Order Delivery and Invoicing screen. Completion of this field is mandatory: the basket cannot be submitted until it is completed.
3 [[image:PECOS P2P.WebHome@Fig 5.35 - Manual PO number entry field.png]]
4 Note that the value entered in the PO Number field is not validated in any way: each order can contain any alpha-numeric value.
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