How To Fix /PF1/MSG_PO_GENERAL170 - Transaction type was substituted from &1 to &2

SAP Error Message - Details

• Message type: E = Error

• Message class: /PF1/MSG_PO_GENERAL -

• Message number: 170

• Message text: Transaction type was substituted from &1 to &2

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /PF1/MSG_PO_GENERAL170 - Transaction type was substituted from &1 to &2 ?

  The SAP error message /PF1/MSG_PO_GENERAL170 indicates that there has been a substitution of the transaction type in a purchase order (PO) process. Specifically, it states that the transaction type was changed from &1 to &2. This typically occurs in the context of purchasing documents when certain conditions or configurations trigger a substitution.
  Cause:
  
  Configuration Settings: The substitution may be due to configuration settings in the SAP system. For example, the system may be set up to automatically substitute transaction types based on certain criteria, such as the vendor, material, or purchasing organization.
  Business Rules: There may be business rules defined in the system that dictate when and how transaction types should be substituted. This could be based on specific conditions that are met during the creation or processing of the purchase order.
  User Input: Sometimes, the user may inadvertently select a transaction type that is not valid for the current context, prompting the system to substitute it with a valid one.
  
  Solution:
  
  Review Configuration: Check the configuration settings for purchasing documents in the SAP system. This can be done by navigating to the relevant customizing transaction (e.g., SPRO) and reviewing the settings for transaction types under the purchasing module.
  Check Business Rules: Investigate any business rules or user exits that may be affecting the transaction type. This may involve reviewing any custom code or enhancements that have been implemented in the system.
  User Training: Ensure that users are trained on the correct selection of transaction types when creating purchase orders. Providing guidance on which transaction types are appropriate for different scenarios can help reduce confusion.
  Consult Documentation: Refer to SAP documentation or notes related to transaction types and substitutions for further insights and best practices.
  
  Related Information:
  
  Transaction Types: In SAP, transaction types are used to categorize purchasing documents and determine their processing logic. Each transaction type has specific settings that control how the document behaves in the system.
  Substitution Logic: The substitution logic can be configured in the system to ensure that the correct transaction type is used based on predefined criteria. This is often done to maintain consistency and compliance with business processes.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error message or provide additional context on transaction type substitutions.
  
  If the issue persists after reviewing the above points, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in the purchasing module for further assistance.