How To Fix IH091 - You must enter a partner number for the partner function

IH091 - Overview

• Message type: E = Error

• Message class: IH - structuring

• Message number: 091

• Message text: You must enter a partner number for the partner function

What causes this issue?

You have entered a <GL:partner_function>partner function</> for the
selection, but have not entered a corresponding partner number.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Enter a <GL:partner>partner</> that has this function.

Error message extract from SAP system. Copyright SAP SE.

IH091 - Details

• The SAP error message IH091, which states "You must enter a partner number for the partner function," typically occurs in the context of creating or modifying a business transaction where partner functions are involved, such as in sales orders, contracts, or service orders. This error indicates that a required partner number for a specific partner function has not been provided.
  
  Cause:
  The error is usually caused by one of the following reasons:
  
  Missing Partner Information: The partner function (e.g., sold-to party, ship-to party, payer, etc.) requires a partner number, but it has not been entered.
  Incorrect Configuration: The partner function may be incorrectly configured in the system, leading to mandatory fields not being filled.
  Data Entry Error: The user may have overlooked entering the partner number or may have entered it incorrectly.
  
  
  Solution:
  To resolve the IH091 error, you can take the following steps:
  
  
  Check Partner Functions:
  
  Go to the transaction where the error occurred (e.g., VA01 for sales