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Description

This error indicates that an API call or system process within SAP S/4HANA has been executed with more input parameters than it is designed to accept. It typically occurs when an application, integration, or custom development attempts to pass an excessive number of arguments to a function or service.

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Error Message

ERR_API_TOO_MANY_PARAMETERS

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Known Causes

3 known causes

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Incorrect API Call Configuration

An external system or custom application is configured to send more parameters than the target SAP S/4HANA API endpoint expects or allows.

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Misconfigured Custom Development

A custom ABAP program, Fiori extension, or another development within S/4HANA passes an excessive number of arguments to a standard or custom function module or method.

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Outdated API Specification/Integration

An integration or client application is using an older API specification or library that does not match the current parameter limits of the SAP S/4HANA system.

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Solutions

3 solutions available

1. Review and Refactor API Call medium

Analyze the API call to reduce the number of parameters passed.

1

Identify the specific API being called that is generating error 589. This usually involves reviewing the application logs or debugging the calling program.

2

Examine the parameters being passed to the API. Determine if any parameters are redundant, optional and not needed for the current operation, or can be derived from other parameters.

3

If possible, modify the calling program to pass fewer parameters. This might involve:
- Grouping related parameters into structures or tables.
- Using default values for optional parameters.
- Re-architecting the logic to pass only essential data.

Example (Conceptual ABAP):

Instead of:
CALL FUNCTION 'Z_MY_API'
  EXPORTING
    param1 = value1
    param2 = value2
    param3 = value3
    param4 = value4
    ...
  IMPORTING
    result = result.

Consider:
DATA: ls_input TYPE z_my_api_input.
ls_input-param1 = value1.
ls_input-param2 = value2.
...
CALL FUNCTION 'Z_MY_API_ENHANCED'
  EXPORTING
    is_input = ls_input
  IMPORTING
    result = result.

4

Test the modified API call thoroughly to ensure it functions correctly and resolves the error.

2. Check API Definition and Version Compatibility medium

Verify the API's definition and ensure compatibility with the S/4HANA version.

1

Consult the SAP API documentation for the specific API that is causing the error. Look for information regarding parameter limits or changes in recent versions.

2

Ensure that the S/4HANA system's version and support package level are compatible with the API being used. Sometimes, older versions of APIs might have different parameter constraints than newer ones.

3

If the API is an older, custom-developed one, review its definition in the ABAP Development Tools (ADT) or SE80. Check for any explicit parameter limits or potential issues in the function module or class definition.

4

If an incompatibility is found, consider upgrading the S/4HANA system or updating the API implementation to a more recent, compatible version.

3. Implement API Parameter Bundling advanced

For custom APIs, redesign them to accept fewer, bundled parameters.

1

If the problematic API is a custom ABAP function module or class method, consider refactoring it. The goal is to reduce the number of individual parameters by bundling them into structures or internal tables.

2

Define new ABAP structures (SE11) or table types to encapsulate related parameters. For example, instead of passing individual address fields, create an address structure.

Example (ABAP Structure Definition):

SE11 -> Data Type -> Structure
Name: Z_ADDRESS_DATA
Components:
  STREET
  CITY
  POSTAL_CODE
  COUNTRY

3

Modify the API's interface to accept these new structures or tables as parameters.

Example (Modified Function Module Interface):

FUNCTION Z_MY_API_REVISED IMPORTING
  IS_CUSTOMER_DATA TYPE Z_CUSTOMER_DATA
  IS_ORDER_DETAILS TYPE Z_ORDER_DETAILS
  IT_ITEM_LIST TYPE Z_ITEM_TABLE
  RETURNING VALUE(EV_STATUS) TYPE CHAR1.
ENDFUNCTION.

4

Update all calling programs to use the refactored API, passing the bundled parameters.

5

Thoroughly test the refactored API and its callers to ensure data integrity and functionality.

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Related Errors

5 related errors

SAP S/4HANA Error 589: API Parameter Overflow