---
article_id: KB0406264
article_type: Support Note
component_ids:
  - BNS-ARI-CI-AN-QA
  - BNS-ARI-CI-SRC
  - BNS-ARI-CI-SRC-RFQ
component_descriptions:
  - SAP Integration Suite, managed gateway > Managed Gateway for Business Network > Managed Gateway Buyer for Quote Automation
  - SAP Integration Suite, managed gateway > Managed Gateway for Sourcing Integration
  - SAP Integration Suite, managed gateway > Managed Gateway for Sourcing Integration > Managed Gateway for Sourcing - RFQ
products:
  - Ariba Cloud Integration
  - SAP Ariba Sourcing, cloud edition
  - SAP Integration Suite, managed gateway for spend management and SAP Business Network
personas:
  - Admin
  - Buyer
language: en
created: 2025-11-17
updated: 2025-11-18
source: Knowledge Base
url: https://support.ariba.com/item/view/KB0406264
connect_url: https://support.ariba.com/item/view/KB0406264?min=1
sap_for_me_url: https://me.sap.com/notes/KB0406264
---

# Error: "BusinessNetwork response is :"Not Acceptable" and ErrorCode:"406" and ErrorResponse:"Invalid Document:Attribute "itemClassification; [...]" for RFQ in Managed Gateway for Spend&Network

## Symptom

When sending Request for Quotation (RFQ) from SAP ERP or SAP S/4 HANA to SAP Business Network using SAP Integration Suite, managed gateway for spend management and SAP Business Network, the following error is displayed in Managed Gateway for Spend&Network Transaction Tracker:

BusinessNetwork response is :"Not Acceptable" and ErrorCode:"406" and ErrorResponse:"Invalid Document:Attribute "itemClassification" with value "" must have a value from the list "material service ". at line 135, column 43.. Suggested Action : Document failed in Business Network.ErrorCode:CIG-PLT-00644

## Cause

Unsupported item category is used in RFQ scenario which causes fields itemClassification and itemType to be sent without any value to SAP Business Network in the cXML payload.

## Resolution

Ensure to select supported item category i.e. material or service while creating RFQ in SAP ERP or SAP S/4 HANA.

## See Also

Refer to the limitations for RFQ integration in *[Managed Gateway for Spend&Network Overview Guide.](https://help.sap.com/docs/sisgw/sap-ariba-cloud-integration-gateway-overview-guide/restrictions-6912b38e490c46168d78729945b4538d?version=LATEST&locale=en-US)*

Go to SAP Help Portal > SAP Integration Suite, Managed Gateway for Spend Management and SAP Business Network Overview Guide > Change in the Names of SAP Ariba Cloud Integration Gateway and Ariba Network > Transactions for SAP Ariba Sourcing and SAP Ariba Contracts > Restrictions

For additional information, please visit [How can I check the SAP Integration Suite Managed Gateway for Spend&Network standard mappings?.](https://support.ariba.com/item/view/KB0402830)

## Keywords

itemClassification, itemType, CIG-PLT-00644, QuoteRequest, CIG, CI, Buyer