Message type: E = Error
Message class: WTY - Warranty processing
Message number: 139
Message text: Callback could not be created
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WTY139
- Callback could not be created ?SAP Error Message: WTY139 - Callback could not be created
Cause: The error message WTY139 typically occurs in SAP when the system attempts to create a callback connection for a remote function call (RFC) or a dialog process, but fails. This failure can be due to several reasons, including: Network issues: The system cannot establish a network connection back to the calling system. Incorrect or missing gateway configuration: The SAP Gateway is not properly configured or not running on the target system. Authorization problems: The user or system does not have the necessary authorizations to create the callback. Incorrect system parameters: Parameters related to the gateway or callback are incorrectly set. Firewall or security settings: Firewalls or security settings block the callback connection. DNS or hostname resolution issues: The system cannot resolve the hostname or IP address of the calling system. Explanation: In SAP, a callback is a mechanism where the called system initiates a connection back to the calling system
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