Message type: E = Error
Message class: PO - Spooler message
Message number: 159
Message text: Data not saved
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The SAP error message PO159 ("Data not saved") typically occurs when there is an issue with saving data in the system, particularly in the context of Purchase Orders (POs) or related documents. This error can arise due to various reasons, and understanding the cause is essential for finding a solution. Causes of PO159 Error Missing Required Fields: Certain mandatory fields may not be filled out in the Purchase Order or related document. If required data is missing, the system will not allow the document to be saved. Authorization Issues: The user may not have the necessary authorizations to create or modify the Purchase Order. This can lead to a failure in saving the data. Data Validation Errors: The data entered may not meet the validation rules set in the system. For example, incorrect formats, invalid values, or inconsistencies can trigger this error. Technical Issues: There may be underlying technical issues, such as database connectivity problems,
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