Message type: E = Error
Message class:  HRPAYDE_0700 - Messages for Infotype 0700 (Electronic Data Exchange) 
Message number: 008
Message text: Subtype permitted only for key date; end date was adjusted
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The SAP error message HRPAYDE_0700008 typically occurs in the context of payroll processing in the SAP HR module, particularly in the German payroll system. This error indicates that a specific subtype of a payroll infotype is only allowed for a certain key date, and the end date for that subtype has been adjusted incorrectly.
Cause: Incorrect Key Date: The error usually arises when the key date for a payroll infotype (like infotype 0008 for basic pay) is not aligned with the allowed subtypes for that infotype. End Date Adjustment: If the end date of a record has been changed or adjusted in a way that conflicts with the rules defined for that infotype or subtype, this error can occur.
Configuration Issues: There may be configuration settings in the system that restrict the use of certain subtypes based on the key date or other criteria.
Solution: Check Key Date: Verify the key date being used for the
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