---
article_id: KB0401804
article_type: FAQ
component_ids:
  - BNS-ARI-CI-AN
  - BNS-ARI-CI-FND-PRT
  - BNS-ARI-CI-PRT-MAP
  - BNS-ARI-CI-SCC-BUY
component_descriptions:
  - SAP Integration Suite, managed gateway > Managed Gateway - Portal > Managed Gateway - Buy Side Mapping tool
  - SAP Integration Suite, managed gateway > Managed Gateway for Business Network
  - SAP Integration Suite, managed gateway > Managed Gateway for Business Network SCC > Managed Gateway for Buyer Business Network SCC
  - SAP Integration Suite, managed gateway > Managed Gateway Foundation & Tools > Managed Gateway for Managed Gateway Portal
products:
  - SAP Ariba Procurement, cloud edition
  - SAP Ariba Sourcing, cloud edition
  - SAP Business Network for Procurement and SAP Business Network for Supply Chain
personas:
  - Admin
  - Buyer
  - Supplier
language: en
created: 2026-10-19
updated: 2026-10-19
source: Knowledge Base
url: https://support.ariba.com/item/view/KB0401804
connect_url: https://support.ariba.com/item/view/KB0401804?min=1
sap_for_me_url: https://me.sap.com/notes/KB0401804
---

# How to map Custom and Extrinsic fields in the Managed Gateway for Spend&Network Mapping Tool?

## Symptom

How to handle custom fields in the Managed Gateway for Spend&Network Mapping Tool?

## Resolution

To perform mappings in custom or extrinsic fields, please follow the steps below from the Mapping Tool:

1. Select the extrinsic or custom segment from sourcing which you want to apply the function and map to a target field
2. Right click on the mapping line and choose **Add Source Condition**
3. Click **@name** field > **Value**
4. Insert the desired condition value
5. Click **OK**

## See Also

- You can access our SAP Integration Suite, Managed Gateway for Spend Management and SAP Business Network Mapping Tool webcast recording in the SAP Article [How to access Managed Gateway for Spend&Network Mapping Tool webcast recording](https://support.ariba.com/item/view/190904) to check this mapping example.
- The Custom node mentioned in step 1 should be the Custom segment under Custom node. For example CustomString segment. To see the available custom field to be used in the mapping tool, follow the article [Why aren't my custom fields available for mapping in the SAP Integration Suite, Managed Gateway for Spend Management and SAP Business Network Mapping Tool?](https://support.ariba.com/item/view/186794)
- If the target segment has multiple line items, follow the steps mentioned in the article [How to use the position looping functionality in SAP Integration Suite, Managed Gateway for Spend Management and SAP Business Network Mapping Tool?](https://support.ariba.com/item/view/186275)

## Keywords

segments, ismg, cig, cloud integration gateway,