Resolving the Begin Transaction wsiWSCreateUpdatePurchaseOrderIntegration Error

If you receive the following error when checking out:

There was a critical error processing the part 1 for service call WRH248353, for the technician HOAR01. The error was: WennSoftGP.Part.Update - obsp_TechPROUpdatePart - ERROR IN obsp_TechPROUpdatePart There was a critical error processing the part 1 for service call WRH248353, for the technician HOAR01. The error was: Begin Transaction wsiWSCreateUpdatePurchaseOrderIntegration CostType = 2 Update CheckoutLog Error Message: Document is currently being edited by another user. Update CheckoutLog Error Message: There was a critical error processing the part 1 for service call WRH248353, for the technician HOAR01. 

The purchase order is open. Once you are out of it, you can reprocess this checkout.