A new purchase requisition can be used also to initiate an inquiry cycle as a step before the creation of a PO. After the awarding (quote summary) is approved, a purchase order can directly be created from the awarding.
This workflow is often used for items that occur after the normal inquiry phase of a project is finished, but when the line item was not included.
This workflow can also be used as the normal workflow during the inquiry phase of a project. In this case, the EPC decides not to differentiate between purchase and inquiry only requisitions, which means all released requisitions are purchase requisitions.