How To Fix MC085 - Key fields cannot be substrings

SAP Error Message - Details

• Message type: E = Error

• Message class: MC - Aggregate: views, matchcodes, lock objects

• Message number: 085

• Message text: Key fields cannot be substrings

What causes this issue?

You can define fields of a matchcode ID as component fields by
specifying the offset and length. However, this is not permitted for
key fields of the tables of the matchcode as otherwise a unique
allocation of the matchcode records would not be possible.

System Response

You cannot activate the matchcode ID in this case.

How to fix this error?

Cancel the component field specfication by cancelling the definitions
in the columns <LS>Offs</> and <LS>Lngth</> in the matchcode ID field
maintenance screen.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MC085 - Key fields cannot be substrings ?

  The SAP error message MC085 ("Key fields cannot be substrings") typically occurs in the context of SAP's Material Management (MM) or Logistics Information System (LIS) when there is an issue with the key fields used in a report or data extraction process. This error indicates that the key fields defined in the selection criteria are not valid because they are being treated as substrings, which is not allowed.
  
  Cause:
  
  Incorrect Key Field Definition: The key fields in the selection criteria may not be defined correctly. For example, if you are using a range of values or partial values instead of full key values, SAP will throw this error.
  Data Extraction Issues: When extracting data from InfoStructures or other data sources, if the key fields are not specified correctly, it can lead to this error.
  Custom Reports: If you are using a custom report or query that has not been properly configured to handle key