How To Fix /ISDFPS/MM138 - To use the F4 help, you must enter a purchasing document and item

SAP Error Message - Details

• Message type: E = Error

• Message class: /ISDFPS/MM -

• Message number: 138

• Message text: To use the F4 help, you must enter a purchasing document and item

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /ISDFPS/MM138 - To use the F4 help, you must enter a purchasing document and item ?

  The SAP error message /ISDFPS/MM138 indicates that the system requires a purchasing document and item to be entered before you can use the F4 help functionality. This error typically occurs in the context of materials management or procurement processes within SAP.
  Cause:
  
  Missing Purchasing Document: The user has not entered a purchasing document number (like a Purchase Order or Purchase Requisition) in the relevant field.
  Missing Item Number: The user has not specified an item number associated with the purchasing document.
  Contextual Requirement: The F4 help functionality is context-sensitive and requires specific data to provide relevant suggestions or options.
  
  Solution:
  To resolve this error, follow these steps:
  
  
  Enter a Purchasing Document: Make sure to input a valid purchasing document number in the designated field. This could be a Purchase Order (PO) or Purchase Requisition (PR) number.
  
  
  Enter an Item Number: If applicable, enter the specific item number related to the purchasing document. This is usually the line item number associated with the document.
  
  
  Check Document Status: Ensure that the purchasing document you are trying to reference is valid and not in a status that would prevent it from being accessed (e.g., deleted, archived, etc.).
  
  
  Use the Correct Transaction: Ensure you are in the correct transaction or screen where the F4 help is applicable. Sometimes, the error can occur if you are in a transaction that does not support F4 help without the necessary context.
  
  
  Consult Documentation: If you are unsure about the required fields, refer to the SAP documentation or help files related to the specific transaction you are using.
  
  
  Related Information:
  
  F4 Help: The F4 help functionality in SAP provides a list of possible values for a field based on the context. It is essential to have the necessary data entered to utilize this feature effectively.
  Transaction Codes: Familiarize yourself with the relevant transaction codes in SAP for purchasing documents, such as ME21N (Create Purchase Order), ME22N (Change Purchase Order), and ME23N (Display Purchase Order).
  User Permissions: Ensure that you have the necessary permissions to access the purchasing documents and that your user role is correctly configured in SAP.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or system administrator for further assistance.