Message type: E = Error
Message class:  PSSC_GROSS - Gross Entitlement and Payment 
Message number: 135
Message text: Error in routine "IS_PAST_OR_FUTURE"
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The SAP error message PSSC_GROSS135, which indicates an "Error in routine 'IS_PAST_OR_FUTURE'," typically arises in the context of SAP's Payroll or Time Management modules. This error usually occurs when there is an issue with date validation, particularly when the system is trying to determine if a date falls in the past or future relative to the current date or a specified reference date. Causes: Invalid Date Input: The date being processed may be outside the acceptable range, such as a date that is too far in the past or future.
Configuration Issues: There may be configuration settings in the payroll or time management modules that are not set correctly, leading to date validation errors. Data Consistency Issues: There could be inconsistencies in the master data or transaction data that are causing the system to misinterpret the date. Custom Code: If there are custom enhancements or modifications in the system, they might not handle date logic
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