Message type: E = Error
Message class:  APPL_MM_PUR_PO - Message Class for Purchase Order 
Message number: 033
Message text: PO has unsupported features on header level. Editing in advanced mode.
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The SAP error message APPL_MM_PUR_PO033 indicates that the Purchase Order (PO) you are trying to edit has unsupported features at the header level when you are in advanced mode. This typically occurs when certain settings or configurations in the PO do not allow for modifications in the advanced editing mode. Causes: Unsupported Features: The PO may have certain features or settings that are not compatible with advanced editing. This can include: Special procurement types. Certain account assignment categories. Specific conditions or agreements that restrict changes. Document Type Restrictions: The document type of the PO may have restrictions that prevent editing in advanced mode. Status of the PO: The status of the PO (e.g., if it is already partially delivered or invoiced) may restrict changes. Custom Enhancements: Custom developments or enhancements in the SAP system may impose additional restrictions on editing. Solutions: Switch to Basic Mode: If possible, switch to the basic editing mode to make the necessary changes. This mode
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