Message type: E = Error
Message class:  APPL_MM_PUR_PO - Message Class for Purchase Order 
Message number: 082
Message text: Document &1 is not a Purchase Order
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The SAP error message APPL_MM_PUR_PO082 indicates that the document you are trying to process is not recognized as a Purchase Order (PO) in the system. This error can occur in various scenarios, such as when attempting to display, change, or process a document that is expected to be a purchase order but is not. Causes: Incorrect Document Type: The document number you are trying to access may not be a purchase order. It could be a different type of document, such as a contract, scheduling agreement, or a different document type altogether. Document Deletion: The purchase order may have been deleted or archived, making it unavailable for processing. Data Entry Error: There may have been a mistake in entering the document number, leading to the system not finding a corresponding purchase order. Authorization Issues: The user may not have the necessary authorizations to view or process the purchase order. System Configuration: There could be issues with
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