---
sourceDocument: Brazil Workflow Data Fabric
sourceDocumentLink: https://www.servicenow.com/docs/r/integrate-applications

 Release :

    - brazil

ft:locale :

    - en-US

ft:publication_title :

    - Brazil Workflow Data Fabric

ft:clusterId :

    - crint

bundleId :

    - crint

workflow :

    - Creator


---

# WADL service support

# WADL service support for Oracle E-Business Suite in Zero Copy Connector for ERP {#ariaid-title1}

Release version: Brazil  
Updated October 22, 2026  
![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read  
Zero Copy Connector for ERP discovers, parses, and models the custom PL/SQL integration services that Oracle E-Business Suite (EBS) describes with WADL documents.

## Services described by WADL {#erp-canvas-oracle-ebs-wadl-support__section-wadl-what}

Oracle EBS publishes custom PL/SQL packages as REST services through the Integrated SOA Gateway (ISG). ISG describes each service with a Web Application Description Language (WADL) document plus a set of referenced XML Schema
Definition (XSD) grammar files. ISG does not use an OpenAPI or Swagger specification.

Because of this, Oracle EBS services follow a separate path through Zero Copy Connector for ERP (Enterprise Resource Planning) from the OpenAPI-based REST services described in [Connecting to other ERP systems using REST](https://www.servicenow.com/docs/N4iKpe86Xcc_GH8t9ceORg "Extract data securely from an ERP with REST for use in remote tables and extraction tables."). Both paths end at the same place: model entities and fields you map in Model Manager.

## Service discovery and caching {#erp-canvas-oracle-ebs-wadl-support__section-wadl-discovery}

When you add a WADL service, Zero Copy Connector for ERP fetches the WADL document and then walks the schema import graph to collect every XSD file the document references.

A WADL service is identified by its ISG alias combined with the ERP system it belongs to. That pairing must be unique. If you try to add a service whose alias already exists for the same system, the duplicate is rejected
rather than overwriting the existing catalog record.

## Input validation strategy {#erp-canvas-oracle-ebs-wadl-support__section-wadl-validation}

After fields are generated, a validation strategy is set on the operation based on how many of its required input fields were created. The strategy determines whether all required inputs must be supplied, at least one must be
supplied, or no input validation is applied.

## Related tasks and reference {#erp-canvas-oracle-ebs-wadl-support__section-wadl-next}

To add a WADL service, see [Add a WADL service manually in Zero Copy Connector for ERP](https://www.servicenow.com/docs/LpoqnRYrZPVc7pCMz01i3Q "Add an Oracle E-Business Suite (EBS) service to a model by supplying its Integrated SOA Gateway alias.").