How To Fix IS818 - Double reference -> material will be ignored

IS818 - Overview

• Message type: E = Error

• Message class: IS - Equipment management

• Message number: 818

• Message text: Double reference -> material will be ignored

What causes this issue?

You have entered both a <GL:equipment>piece of equipment</> and a
<GL:material>material</> as a reference.
You can enter <ZH>either</> a piece of equipment
<ZH>or</> a material as a reference but not both.

System Response

The system will use the piece of equipment as ther reference instead
of the material.

How to fix this error?

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message IS818 - Double reference -> material will be ignored ?

  The SAP error message IS818 ("Double reference -> material will be ignored") typically occurs in the context of material master data or during the processing of certain transactions related to materials, such as inventory management or production planning. This error indicates that there is a duplicate reference to a material in the system, which prevents the system from processing the transaction correctly.
  
  Cause:
  
  Duplicate Material References: The most common cause of this error is that the same material is being referenced multiple times in a transaction or in the configuration of a process (e.g., BOM, routing, etc.).
  Incorrect Configuration: There may be issues in the configuration of the material master or related objects that lead to the system interpreting the same material in multiple contexts.
  Data Integrity Issues: There could be inconsistencies or corruption in the material master data, leading to the system recognizing duplicate entries.
  
  
  Solution:
  
  Check Material Master Data: Review the material master records