How To Fix E9170 - You can only allocate one business partner

SAP Error Message - Details

• Message type: E = Error

• Message class: E9 - General IS-U Error Messages

• Message number: 170

• Message text: You can only allocate one business partner

What causes this issue?

Only one business partner can be allocated to contract accounts that
are not one-time accounts.

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

System Response

How to fix this error?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message E9170 - You can only allocate one business partner ?

  The SAP error message E9170, "You can only allocate one business partner," typically occurs in scenarios where a business process or transaction is attempting to assign multiple business partners to a single entity or transaction, which is not allowed in the system configuration.
  Cause:
  
  Multiple Business Partners: The error usually arises when a user tries to assign more than one business partner to a single transaction or entity, such as a customer or vendor record.
  Configuration Settings: The system may be configured to allow only one business partner per transaction or entity, leading to this restriction.
  Data Entry Error: Users may inadvertently select multiple business partners due to incorrect data entry or misunderstanding of the system's requirements.
  
  Solution:
  
  Review Business Partner Assignment: Check the transaction or entity you are working with to ensure that only one business partner is assigned. If multiple partners are selected, remove the additional ones.
  Consult Documentation: Refer to the SAP documentation or help files related to business partner management to understand the correct procedures for assigning business partners.
  System Configuration: If the business process requires multiple business partners, consult with your SAP administrator or technical team to review the system configuration. They may need to adjust settings or implement a different approach to accommodate your business needs.
  Training and Guidelines: Provide training or guidelines to users on how to correctly assign business partners to avoid this error in the future.
  
  Related Information:
  
  Business Partner Concept: In SAP, the business partner concept is used to manage all entities (customers, vendors, etc.) in a unified manner. Understanding how business partners are structured and assigned is crucial.
  Transaction Codes: Familiarize yourself with relevant transaction codes (like BP for business partner maintenance) to manage business partners effectively.
  SAP Notes and Support: Check SAP Notes for any known issues or patches related to this error message. You can search the SAP Support Portal for specific notes that might address this error.
  
  If the issue persists after following these steps, it may be beneficial to engage with SAP support for further assistance.