Message type: E = Error
Message class:  /SPE/PO_CHANGE -  
Message number: 019
Message text: Core interface connection between ERP and APO not active
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The SAP error message /SPE/PO_CHANGE019 indicates that there is an issue with the core interface connection between the ERP (Enterprise Resource Planning) system and the APO (Advanced Planner and Optimizer) system. This error typically arises when the necessary settings or configurations for the integration between these two systems are not properly set up or activated.
Cause: Inactive Core Interface: The core interface (CIF) connection between ERP and APO is not active. This can happen if the CIF settings have not been properly configured or if there are issues with the connection. Missing Configuration: The necessary configuration for the integration model may not be set up in the ERP system. Authorization Issues: There may be authorization issues preventing the CIF from being activated or used. Technical Issues: There could be technical issues such as network problems, system downtime, or incorrect system settings.
Solution: Check CIF Activation: Go to transaction code CIF in the ERP system. Check if the core interface
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