How To Fix RDM_BBY178 - Enter the sales unit for material &1 of line items on the Buy side

RDM_BBY178 - Overview

• Message type: E = Error

• Message class: RDM_BBY - Bonus Buy: Messages

• Message number: 178

• Message text: Enter the sales unit for material &1 of line items on the Buy side

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 RDM_BBY178 - Enter the sales unit for material &1 of line items on the Buy side ?

  The SAP error message RDM_BBY178 indicates that there is a missing sales unit for a material on the buy side of a transaction. This typically occurs in the context of procurement processes, such as when creating purchase orders or purchase requisitions.
  
  Cause:
  The error arises when the system expects a sales unit to be defined for a material, but it is either not maintained or incorrectly configured in the material master data. The sales unit is essential for determining how the material is sold and managed in the system.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Material Master Data:
  
  Go to the Material Master (Transaction Code: MM03).
  Enter the material number that is causing the error.
  Check the relevant views (especially the Sales Organization Data and Purchasing views) to ensure that the sales unit is defined.
  
  
  
  Maintain Sales Unit:
  
  If the sales unit is missing, you will need to maintain it.
  Use Transaction Code: MM02 to edit