How To Fix PFO1251 - Unknown object type &1

PFO1251 - Overview

• Message type: E = Error

• Message class: PFO1 - Messages for Portfolio Assignment

• Message number: 251

• Message text: Unknown object type &1

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message PFO1251 - Unknown object type &1 ?

  The SAP error message PFO1251 "Unknown object type &1" typically occurs in the context of the SAP Process Orchestration (PO) or SAP Process Integration (PI) when the system encounters an object type that it does not recognize or cannot process. This can happen in various scenarios, such as when working with mappings, interfaces, or configurations.
  Causes:
  
  Incorrect Object Type: The object type specified in the configuration or mapping is not valid or does not exist in the system.
  Missing or Incomplete Configuration: The necessary configuration for the object type has not been set up properly.
  Transport Issues: If the object was transported from another system, it may not have been transported correctly, leading to missing definitions.
  Version Mismatch: There may be a version mismatch between the components of the SAP system, leading to incompatibility with certain object types.
  Custom Development: If custom objects or types are being used, they may not be properly defined or registered