SAP Knowledge Base Article - Preview

3681010 - Deprecation of SAP Java Connector (JCo) 2.x in MII and Migration to JCo 3.x

Symptom

During usage of SAP MII (Manufacturing Integration and Intelligence) may experience failures in JCo-based integrations after recent upgrades or MII patches.
Typical errors include:

  • Destination <destination name> does not exist

  • null object returned from com.sap.conn.jco.JCoDestination.getLanguage

  • JCo action block fails calling a BAPI due to unsupported data type int8

  • SSO login does not work for JCo actions when destination is used

These issues occur because older JCo 2.x interfaces are no longer supported or compatible with recent SAP Java Connector (JCo) 3.x updates. 


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Environment

  • SAP MII 15.4 and higher

  • SAP S/4HANA 2022 and higher

  • SAP Java Connector (JCo) 3.x

  • Affected action blocks: JCo Interface, JCo Function, JCo Action Block

Product

SAP Manufacturing Integration and Intelligence 15.4 ; SAP Manufacturing Integration and Intelligence 15.5

Keywords

MII, Manufacturing Integration and Intelligence, JCo, RFC, JCo2, JCo3, BAPI, S/4HANA, INT8, Deprecated, Migration, Destination, Connection Alias, SSO, Java Connector, Manufacturing Integration, MFG, Manufacturing, Visiprise , KBA , MFG-ME , SAP Manufacturing Execution , MFG-MII , SAP Manufacturing Integration and Intelligence , Problem

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