Message type: E = Error
Message class:  PO - Spooler message 
Message number: 405
Message text: Entry & does not exist
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Choose another entry.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message PO405 ("Entry & does not exist") typically occurs when you are trying to access or manipulate a purchase order (PO) or related document that the system cannot find. This can happen for several reasons, and understanding the cause is essential for resolving the issue.
Causes of PO405 Error
Incorrect PO Number: The most common cause is that the purchase order number you are trying to access is incorrect or has been mistyped.
PO Deletion: The purchase order may have been deleted or archived, making it unavailable for access.
Authorization Issues: You may not have the necessary permissions to view or edit the purchase order.
Data Consistency Issues: There may be inconsistencies in the database or issues with the data that prevent the system from locating the purchase order.
Document Type Issues: The document type of the purchase order may not be valid or may not exist in the system.
Solutions to PO405 Error
Verify Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
PO404 Empty entry selected
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
PO403 No backup necessary
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
PO406 Entry & could not be deleted
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
PO407 Entry & does not exists
What causes this issue?  The system issues an error message and will not allow you to continue with this transaction until the error is resolved. Syst...
Click on this link to search all SAP messages.