Message type: E = Error
Message class:  FAR_MY_DUNNING_PROP - Messages for oData Service FAR_MY_DUNNING_PROPOSAL 
Message number: 001
Message text: Parameter &1 is missing. Please contact your system administrator.
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The SAP error message FAR_MY_DUNNING_PROP001 with the description "Parameter &1 is missing. Please contact your system administrator." typically indicates that a required parameter for the dunning process is not set or is missing in the configuration. This can occur in the context of financial accounting, particularly in the dunning process, which is used to manage overdue payments.
Cause: Missing Configuration: The parameter that is referenced by &1 is not defined in the system. This could be due to incomplete configuration settings in the dunning area. Custom Development: If there are custom developments or enhancements in the dunning process, they may not be correctly handling the parameters. Transport Issues: If the system has recently undergone a transport of changes, some parameters may not have been transported correctly. User Authorizations: The user may not have the necessary authorizations to access certain parameters or configurations.
Solution: Check Configuration: Go to the dunning configuration settings in the SAP system (Transaction code:
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