Message type: E = Error
Message class:  HRPIQ000 - Messages in Development Class PMIQ 
Message number: 875
Message text: Extension parameter &1 must use structure &2
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.
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The SAP error message HRPIQ000875, which states "Extension parameter &1 must use structure &2," typically occurs in the context of SAP's Human Capital Management (HCM) module, particularly when dealing with infotypes or custom enhancements.
Cause: This error usually arises when there is a mismatch between the expected structure of an extension parameter and the actual structure being used. Specifically, it indicates that the extension parameter defined in a custom implementation or enhancement does not conform to the required data structure that SAP expects.
Solution: To resolve this error, you can follow these steps: Check the Extension Parameter: Identify the extension parameter (&1) mentioned in the error message. Review its definition and ensure that it is correctly defined in the context of the relevant infotype or enhancement. Verify the Structure: Look at the structure (&2) that the extension parameter is supposed to use. Ensure that the data types, lengths, and fields match what is defined in the
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