How To Fix FRMLAPI251 - Matrix sizes are not permitted

SAP Error Message - Details

• Message type: E = Error

• Message class: FRMLAPI - RMS-FRM: API Messages for Formula

• Message number: 251

• Message text: Matrix sizes are not permitted

What causes this issue?

INCLUDE RMS_FRM_CALC_API_GEN OBJECT DOKU ID TX
The matrixes determined in the runtime are outside the permitted limits.

System Response

INCLUDE RMS_GEN_PROC_CANC_BACK OBJECT DOKU ID TX

How to fix this error?

INCLUDE RMS_FRM_CALC_API_CHECK OBJECT DOKU ID TX

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 FRMLAPI251 - Matrix sizes are not permitted ?

  The SAP error message FRMLAPI251: Matrix sizes are not permitted typically occurs in the context of SAP's formula management or when working with matrix operations in SAP applications, such as SAP ERP or SAP S/4HANA. This error indicates that there is an issue with the dimensions of the matrices being used in a calculation or operation, which are not compatible or allowed.
  Causes:
  
  
  Incompatible Matrix Sizes: The most common cause is that the matrices involved in the operation do not have compatible dimensions. For example, if you are trying to multiply two matrices, the number of columns in the first matrix must equal the number of rows in the second matrix.
  
  
  Incorrect Formula Configuration: If you are using a formula that involves matrix calculations, the formula may be incorrectly configured, leading to incompatible sizes.
  
  
  Data Input Issues: The data being inputted into the system may not conform to the expected matrix sizes, either due to user error or data corruption.
  
  
  System Limitations: There may be inherent limitations in the SAP system regarding the maximum size of matrices that can be processed.
  
  
  Solutions:
  
  
  Check Matrix Dimensions: Review the dimensions of the matrices involved in the operation. Ensure that they are compatible for the intended operation (e.g., addition, multiplication).
  
  
  Review Formula Configuration: If the error arises from a specific formula, check the configuration of that formula. Ensure that all components are correctly defined and that the expected input sizes are adhered to.
  
  
  Validate Input Data: Ensure that the data being used in the calculations is correct and conforms to the expected formats and sizes. This may involve checking for data entry errors or validating data sources.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines on matrix operations and limitations within the version of SAP you are using.
  
  
  Error Logs and Debugging: Check the system logs for any additional error messages or warnings that may provide more context about the issue. Debugging the process may also help identify where the size mismatch is occurring.
  
  
  Contact SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support for assistance. They may provide insights specific to your system configuration or version.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide patches or updates that could resolve the issue.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  Training and Documentation: Ensure that users working with matrix operations are adequately trained and have access to documentation that outlines the requirements for matrix sizes and operations.
  
  By following these steps, you should be able to diagnose and resolve the FRMLAPI251 error in your SAP environment.