Message type: E = Error
Message class: CRM_UIU_BT -
Message number: 401
Message text: ATP Screen: No Mapped LogSys defined
The definition of the mapped logical system APOATP is incorrect.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Make an entry in the following transaction: CRMS_IC_CROSS_SYS
Error message extract from SAP system. Copyright SAP SE.
CRM_UIU_BT401
- ATP Screen: No Mapped LogSys defined ?The SAP error message "CRM_UIU_BT401 ATP Screen: No Mapped LogSys defined" typically occurs in the context of the Advanced ATP (Available-to-Promise) functionality within SAP CRM (Customer Relationship Management). This error indicates that the system is unable to find a mapped logical system (LogSys) for the ATP screen, which is necessary for the system to retrieve and display availability information.
Cause: Missing Logical System Mapping: The error usually arises when there is no logical system defined or mapped for the specific business transaction or application area in the CRM system.
Configuration Issues: There may be issues in the configuration settings related to the ATP functionality or the logical system settings. Transport Issues: If the configuration was recently transported from another system, it might not have been set up correctly in the target system.
Solution: Check Logical System Configuration: Go to transaction SPRO (SAP Reference IMG). Navigate to SAP Customizing Implementation Guide > Cross-Application Components > General Settings > Logical
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