How To Fix /SAPAPO/CDPSPRESENTA121 - Function is not possible as neither a resource nor a block is selected

/SAPAPO/CDPSPRESENTA121 - Overview

• Message type: E = Error

• Message class: /SAPAPO/CDPSPRESENTA -

• Message number: 121

• Message text: Function is not possible as neither a resource nor a block is selected

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/CDPSPRESENTA121 - Function is not possible as neither a resource nor a block is selected ?

  The SAP error message /SAPAPO/CDPSPRESENTA121 indicates that a function cannot be executed because neither a resource nor a block has been selected in the context of the Advanced Planning and Optimization (APO) module, specifically in the context of Capacity Planning or similar functions.
  
  Cause:
  This error typically occurs in the following scenarios:
  
  No Resource Selected: The user is trying to perform an action that requires a specific resource (like a machine or production line) to be selected, but none has been chosen.
  No Block Selected: In some cases, the action may require a block (a grouping of resources or a specific time period) to be selected, and none has been selected.
  User Interface Issue: Sometimes, the user interface may not be displaying the resources or blocks correctly, leading to the selection issue.
  Authorization Issues: The user may not have the necessary authorizations to view or select the resources or blocks.
  
  
  Solution:
  To resolve this error, you can take