How To Fix FRMLDLG252 - No substances have been specified; system cannot generate I/O materials

SAP Error Message - Details

• Message type: E = Error

• Message class: FRMLDLG - RMS-FRM: Dialog Messages for Formula

• Message number: 252

• Message text: No substances have been specified; system cannot generate I/O materials

What causes this issue?

You want to generate the I/O Materials view from the I/O Substances
view. However, no substances have been entered.

System Response

The system cannot perform the conversion.

How to fix this error?

Edit the I/O Substances view first.

Procedure for System Administrators

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 FRMLDLG252 - No substances have been specified; system cannot generate I/O materials ?

  The SAP error message FRMLDLG252 indicates that there are no substances specified in the context where the system is trying to generate input/output (I/O) materials. This error typically occurs in the context of working with formulas or recipes in SAP, particularly in the SAP ERP system's Product Lifecycle Management (PLM) or Recipe Management modules.
  Cause:
  
  Missing Substance Information: The most common cause of this error is that the formula or recipe you are trying to work with does not have any substances defined. Substances are essential for the system to understand what materials are involved in the process.
  Incorrect Configuration: There may be an issue with the configuration of the material or the formula itself, leading to the absence of required substance data.
  Data Inconsistency: There could be inconsistencies in the data entered, such as missing or incorrect entries in the substance fields.
  
  Solution:
  
  Check the Formula/Recipe: Go to the formula or recipe in question and ensure that all necessary substances are defined. You can do this by navigating to the relevant transaction (e.g., C201 for creating or changing formulas) and checking the substance list.
  Add Substances: If substances are missing, you will need to add them. Ensure that you have the correct materials and that they are properly defined in the system.
  Validate Data: Ensure that all required fields are filled out correctly and that there are no data inconsistencies. This includes checking for valid material numbers and ensuring that the materials are active and not blocked.
  Check Material Master Data: Verify that the materials you are trying to use as substances are correctly set up in the material master. This includes checking their status and ensuring they are not marked for deletion or inactive.
  Consult Documentation: If you are unsure about the required fields or setup, refer to SAP documentation or consult with your SAP support team for guidance on the specific configuration needed for your environment.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as C201 (Create Formula), C202 (Change Formula), and C203 (Display Formula) to manage formulas and substances.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP Notes can provide additional context or solutions for specific scenarios.
  User Roles and Permissions: Ensure that you have the necessary permissions to modify formulas and substances in the system. Sometimes, lack of permissions can lead to incomplete data entry.
  Training and Documentation: If you are new to working with formulas in SAP, consider seeking training or reviewing documentation to better understand how to manage substances and recipes effectively.
  
  By following these steps, you should be able to resolve the FRMLDLG252 error and successfully generate the required I/O materials in SAP.