Error when calling a Function Module or BAPI

Error:

When calling a Function Module (FM) or BAPI no error or no value is returned.

Reason:

This could have many reasons. Here are some of them:

No leading zeroes in FM Import Parameters
Date Format is wrong
Missing Parameter
BAPI needs Commit
No authority to run FM

Solution:

Fill in the values with leading zeroes. E.g. MATNR (18 Chars). Wrong: 424642456. Correct: 000000000424642456.

Date Format must be in the SAP internal format. Wrong : 13.01.2014. Correct: 20140113.

Some BAPIs need a Commit after the call to finish the execution of the BAPI: You can find an example in the Knowledge Base Article Post Goods Movement.

Check if you have the authority to run this FM. Some FM in SAP return no error message after a not successful authority check.

We recommend also first to run the FM/BAPI in SAP in the T-CODE SE37 to check the needed parameters with the same user as in the .NET Code. But leading zeroes and other formats are not considered in the SE37.

hec1

Creation date: 5/26/2022 7:06 PM Updated: 1/22/2025 9:53 AM