In an embodiment, a computer-implemented method operating at a server system is disclosed. The server hosts and electronic procurement system. One or more user instructions for importing a purchase requisition are received. In response to the one or more instructions, a purchase requisition is received, where the purchase requisition originates from outside the electronic procurement system. The purchase requisition is converted from a first format to a second format, wherein the second format is native to the electronic procurement system. The converted purchase requisition verified to be consistent with business rules associated with the electronic procurement system, including at least a rule to verify that the purchase requisition originates from a recognized user of the electronic procurement system. Then, the purchaser requisition is routed for approval. Related methods and systems are also disclosed.