How To Fix ICLCUST305 - Relationship category &1: Each relationship cat. may be used only once

ICLCUST305 - Overview

• Message type: E = Error

• Message class: ICLCUST - Checking Customizing Tables

• Message number: 305

• Message text: Relationship category &1: Each relationship cat. may be used only once

Self-Explanatory Message

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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 ICLCUST305 - Relationship category &1: Each relationship cat. may be used only once ?

  The SAP error message ICLCUST305 indicates that there is an issue with the relationship categories defined in the system. Specifically, it means that a particular relationship category is being used more than once for the same object or entity, which is not allowed.
  
  Cause:
  The error typically arises in the context of customizing relationships in SAP, particularly in modules like SAP Customer Relationship Management (CRM) or SAP Master Data Governance (MDG). The relationship categories are meant to define how different entities (like customers, vendors, or products) are related to each other. Each relationship category should be unique for a given relationship type, and if you attempt to assign the same category multiple times, the system will throw this error.
  
  Solution:
  To resolve the ICLCUST305 error, you can follow these steps:
  
  
  Identify the Duplicate Relationship:
  
  Check the configuration or master data where the relationship categories are defined.
  Look for the specific relationship category mentioned in the error message