How To Fix MM358 - Customer-defined fields for structure &1 have not been transferred

MM358 - Overview

• Message type: E = Error

• Message class: MM - Messages for material master maintenance and Customizing

• Message number: 358

• Message text: Customer-defined fields for structure &1 have not been transferred

What causes this issue?

Customer-defined fields have not been written to the database for one
of the following reasons:
The key fields for the table parameters (EXTENSIONIN and EXTENSIONINX)
do not contain entries or do not agree.
The key fields for the table parameters do not agree with the key
fields for the corresponding import parameters (for example, PLANTDATA
and PLANTDATAX or in the case of the material number
HEADDATA-MATERIAL).

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Make sure that the key fields are the same for all relevant parameters.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MM358 - Customer-defined fields for structure &1 have not been transferred ?

  The SAP error message MM358 indicates that there are customer-defined fields in a structure that have not been transferred during a specific operation, typically related to material management processes. This error often arises in scenarios involving data transfer, such as during the creation or modification of materials, vendor data, or other related master data.
  
  Cause:
  
  Missing Custom Fields: The error usually occurs when there are custom fields defined in a structure that are expected to be populated but are not being transferred correctly.
  Inconsistent Data Model: If the data model in the source system does not match the expected structure in the target system, it can lead to this error.
  
  Configuration Issues: There may be issues in the configuration of the custom fields or the data transfer process itself.
  User Exits or BAdIs: If there are user exits or Business Add-Ins (BAdIs) that are supposed to handle the transfer of these fields but are not