How To Fix RU190 - Individual cap. &/& is already manually confirmed

RU190 - Overview

• Message type: E = Error

• Message class: RU - Messages for order completion confirmation

• Message number: 190

• Message text: Individual cap. &/& is already manually confirmed

What causes this issue?

The individual capacity was already confirmed (for example, using a
summary confirmation).

Error message extract from SAP system. Copyright SAP SE.

RU190 - Details

• The SAP error message RU190, which states "Individual capacity &/& is already manually confirmed," typically occurs in the context of capacity planning and scheduling in SAP, particularly when dealing with production orders or capacity requirements.
  
  Cause:
  This error arises when you attempt to confirm a capacity that has already been manually confirmed. In SAP, individual capacities (like work centers or production resources) can only be confirmed once for a specific time period. If a confirmation is attempted again for the same capacity within that time frame, the system will generate this error.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Existing Confirmations: 
  
  Use transaction codes like CO11N (for confirming production orders) or COHV (for mass processing of confirmations) to check if the capacity has already been confirmed.
  Review the confirmation history for the specific work center or resource to see if there are overlapping confirmations.
  
  
  
  Adjust Confirmations:
  
  If you find that the capacity has