How To Fix VBAI_APO003 - Incorrect call for function module 'VBXU_APO_UOM_CONVERT'

SAP Error Message - Details

• Message type: E = Error

• Message class: VBAI_APO - Batch Management Proportion/Product Units & APO

• Message number: 003

• Message text: Incorrect call for function module 'VBXU_APO_UOM_CONVERT'

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message VBAI_APO003 - Incorrect call for function module 'VBXU_APO_UOM_CONVERT' ?

  The SAP error message VBAI_APO003 Incorrect call for function module 'VBXU_APO_UOM_CONVERT' typically indicates that there is an issue with the way the function module VBXU_APO_UOM_CONVERT is being called in the context of your application. This function module is generally used for unit of measure conversions in the Advanced Planning and Optimization (APO) module of SAP.
  Possible Causes:
  
  Incorrect Parameters: The function module may be called with incorrect or missing parameters. Ensure that all required parameters are being passed correctly.
  Data Type Mismatch: The data types of the parameters being passed may not match the expected types defined in the function module.
  Configuration Issues: There may be configuration issues in the APO settings related to unit of measure conversions.
  Authorization Issues: The user executing the function may not have the necessary authorizations to perform the conversion.
  System Bugs: There could be bugs or inconsistencies in the SAP system that are causing the function module to fail.
  
  Solutions:
  
  Check Function Module Documentation: Review the documentation for VBXU_APO_UOM_CONVERT to ensure that you are using it correctly and passing the right parameters.
  Parameter Validation: Validate the parameters being passed to the function module. Ensure that they are not null and are of the correct data type.
  Debugging: Use the SAP debugger to step through the code where the function module is called. This can help identify the exact point of failure and the values of the parameters being passed.
  Review Configuration: Check the configuration settings in the APO module related to unit of measure conversions. Ensure that all necessary settings are correctly configured.
  Check Authorizations: Verify that the user has the necessary authorizations to execute the function module.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address known issues with this function module.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for APO and the specific function module for detailed information on its usage.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found.
  Transaction Codes: Familiarize yourself with relevant transaction codes that may help in troubleshooting, such as SE37 (Function Module), SE80 (Object Navigator), and ST22 (Dump Analysis).
  
  If the issue persists after trying the above solutions, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.