Symptom
You wanted to know what is causing the creation of many Purchase orders when bundling Purchase request Items of same Purchase request.
or
Purchase order is not created as per Bundling rule you have chosen.
Environment
SAP Business ByDesign
Cause
Along with bundle and order option that you choose system also considers the currency of each Purchase request item to split as per currency and create Purchase orders separately for each currency.
Resolution
This is generic split rule existing in system currently.
See Also
2706196 - How the Currency of Purchase Order that is Created From Purchase Request is Determined
Keywords
Wrong Purchase order, Purchase order created wrongly , KBA , AP-POP-PO , Purchase Order , Problem