How To Fix /SAPPCE/01018 - PO item number must be &1 and may not be changed

/SAPPCE/01018 - Overview

• Message type: E = Error

• Message class: /SAPPCE/01 -

• Message number: 018

• Message text: PO item number must be &1 and may not be changed

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPPCE/01018 - PO item number must be &1 and may not be changed ?

  The SAP error message /SAPPCE/01018 PO item number must be &1 and may not be changed typically occurs in the context of Purchase Order (PO) processing within the SAP system, particularly when using the SAP Supplier Relationship Management (SRM) or similar modules. This error indicates that there is a mismatch between the expected item number for a purchase order and the item number that is being processed or modified.
  
  Cause:
  
  Item Number Mismatch: The item number being referenced in the transaction does not match the expected item number defined in the system. This can happen if there is an attempt to change the item number of a PO item that is already defined.
  Data Integrity Issues: There may be issues with data integrity, such as incorrect data being pulled from the database or inconsistencies in the PO item data.
  System Configuration: The system may be configured in a way that restricts changes to certain