How To Fix /CCIS/TAX121 - Select only one line

/CCIS/TAX121 - Overview

• Message type: E = Error

• Message class: /CCIS/TAX -

• Message number: 121

• Message text: Select only one line

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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.

Unfortunately, there isn't any extra information in this error notice.

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/CCIS/TAX121 - Details

• The SAP error message /CCIS/TAX121 Select only one line typically occurs in the context of tax determination or tax calculation processes within the SAP system, particularly when using the SAP Convergent Charging (CC) or SAP Convergent Invoicing (CI) modules. This error indicates that the system expects the user to select only one line item from a list, but multiple items have been selected instead.
  
  Cause:
  
  Multiple Selections: The user has selected more than one line item in a list where only a single selection is allowed.
  User Interface Limitation: The interface or transaction being used is designed to process only one line at a time, and the system is enforcing this rule.
  
  Configuration Issues: There may be specific configurations in the tax determination process that require a single line selection.
  
  
  Solution:
  
  Select a Single Line: Review the list of items presented and ensure that only one line is selected before proceeding. Deselect any additional lines.
  Check User