Number range "PO" does not exists *****Classic

Question

Hi Friends,
We are in SRM 5.5 and classic mode is on and we require backend PO to be created. We have replicated all data from backend and trying to create a PO (ECDP Direct Material) and when we click the create button in 'Process Pur Order' it does not allow to create a PO and gives error "No range PO does not exist". The same error is thrown while we convert an accepted Bid into a PO from Bidding engine. We have made the following settings.
Classic mode is on.
internal No Range "PO" created in SRM under shopping cart and follow on document.
Defined trnsc type ECDP and assigned this no range PO to it. It is Active.
Defined External no range "PO" in ECC B/E client with matching range. (Marked external)
Defined Doc Type ECDP in ECC and assigned this no range to it.
In SRM under "Define Number Ranges per Backend System for Follow-on Documents" Maintained Log Sys as ECC Backend client and "PO" in PO number range.
Also all relavent attributes are maintained including BSA.
Is there any sttings which are missing how can we locate the problem. Any help in this would be highly appreciated.
Also post this are there any special tips for PO Creation and transfer from Bidding Engine in Classic Mode? where can I find the links?
Answers will be surely rewarded. Thanks
Hussain

Answer 1

Hi Guys,
appologies to reply late. Actually the resolution is taken from the SDN itself with little changes.
What we resolved is to fool the system by passing an ACC with a dummy cost centre.
use ECC BADI u2018BBP_BADI_EXTREQ_OUTu2019 to assign a standard ACC but with a dummy cost centre.
the SRM process for direct material is hardcoded hence this converts the direct procurement into indirect. The SRM SHC will contain the cost assignment tab.
Now when you process this document and generate a PO the document type should be ECPO and then it will pick up the number range defined under "Shopping Cart and follow-on documents".
**For a Direct Material system is hardcoded to look for a local number range irrespective of your scenario.
Now while creating a PO from SRM use BADI BBP_CREATE_BE_PO_NEW  to check if the dummy cost centre exists then remove the CC and the ACC before creating the backend PO. The ECC PO will be that of direct material type.
Thanks
Hussain