Message type: E = Error
Message class:  PPESTATUS - Messages: iPPE Status Management 
Message number: 302
Message text: Selection only possible using template and single value
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The SAP error message PPESTATUS302 indicates that a selection can only be made using a template and a single value. This error typically occurs in the context of SAP's Production Planning and Detailed Scheduling (PP/DS) module, particularly when working with planning boards or similar tools where selections are made based on certain criteria.
Cause: The error arises when a user attempts to make a selection that does not conform to the expected input format. Specifically, it suggests that the system requires a template (which defines the selection criteria) and a single value (which specifies the particular item or parameter to be selected). If the user tries to select multiple values or does not use a template, the system will trigger this error.
Solution: To resolve the PPESTATUS302 error, follow these steps: Use a Template: Ensure that you are using a predefined selection template. This template should be set up to filter the data according to
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