Message type: E = Error
Message class:  HRASR00_DT_FSCN_DATA - Message of Data Class for Form Scenarios 
Message number: 637
Message text: Form type roadmap can only be specified for the process start
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The SAP error message HRASR00_DT_FSCN_DATA637 indicates that there is an issue with the configuration of a form type in the context of a process in SAP's HR (Human Resources) module, specifically related to the Employee Self-Service (ESS) or Manager Self-Service (MSS) functionalities. The error message states that the form type "roadmap" can only be specified for the process start, meaning that it is not valid to use this form type in other parts of the process.
Cause: Incorrect Configuration: The form type "roadmap" is likely being used in a context where it is not allowed. In SAP, certain form types are designated for specific stages of a process, and using them incorrectly can lead to this error. Process Definition Issues: The process definition may have been set up incorrectly, leading to the use of the roadmap form type in an invalid context. Version Compatibility: There may be compatibility issues with the version of SAP
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