How To Fix 42226 - Parameter &2 was expected instead of &1 in the interface

42226 - Overview

• Message type: E = Error

• Message class: 42 - Information Workbench

• Message number: 226

• Message text: Parameter &2 was expected instead of &1 in the interface

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 42226 - Parameter &2 was expected instead of &1 in the interface ?

  The SAP error message 42226 indicates that there is a mismatch in the parameters being passed to a function module or method in an interface. Specifically, it means that the system expected a parameter of a certain type (denoted by &2), but instead received a different type (denoted by &1). This can occur in various scenarios, such as when calling a BAPI, RFC, or any other function module.
  
  Cause:
  
  Parameter Mismatch: The most common cause is that the calling program is passing an incorrect data type or structure for one of the parameters.
  Changes in Interface: If the interface of the function module or method has changed (e.g., due to an upgrade or modification), the calling program may not be updated accordingly.
  Incorrect Data Mapping: If the data being passed is not correctly mapped to the expected structure or type, this error can occur.
  Version Compatibility: If there are version differences between the calling program