Message type: E = Error
Message class:  CN_EVWB - Message class of Eanred Value Workbench 
Message number: 201
Message text: Enter actual start date
Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.
To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.
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The SAP error message CN_EVWB201: Enter actual start date typically occurs in the context of project management or project system (PS) modules when you are trying to record actual data for a project or activity without having specified an actual start date. This is a common requirement in SAP to ensure that project tracking and reporting are accurate.
Cause: The error arises when: You are attempting to enter actual costs, actual work, or other actual data for a project or activity. The system requires an actual start date to be entered before you can proceed with recording actuals. The actual start date is either missing or not filled in the relevant fields.
Solution: To resolve this error, you should: Navigate to the relevant project or activity where you are trying to enter actual data. Locate the field for the actual start date. This is usually found in the project definition or in the activity details. Enter the actual start date.
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