Message type: E = Error
Message class:  /PRA/CA_SPF -  
Message number: 118
Message text: Invalid date; effective from date must be 1st day of the month
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The SAP error message /PRA/CA_SPF118 Invalid date; effective from date must be 1st day of the month typically occurs when you are trying to enter a date that is not the first day of the month in a field that requires it. This is common in various SAP modules, especially in areas related to personnel administration, payroll, or any configuration where effective dates are critical.
Cause: The error is triggered because the system has a validation rule that requires the "effective from" date to be the first day of the month. This is often the case in scenarios where changes to records (like employee data, payroll data, etc.) are only allowed to take effect at the beginning of a month for consistency and reporting purposes.
Solution: To resolve this error, you need to ensure that the date you are entering in the relevant field is set to the first day of the month. Here
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