How To Fix CACSDESIGN140 - Key fields must only be of type 'C' or 'N'

CACSDESIGN140 - Overview

• Message type: E = Error

• Message class: CACSDESIGN - Messages From Construction

• Message number: 140

• Message text: Key fields must only be of type 'C' or 'N'

Self-Explanatory Message

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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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CACSDESIGN140 - Key fields must only be of type 'C' or 'N' ?

  The SAP error message CACSDESIGN140 indicates that there is an issue with the key fields defined in a data model or a database table. Specifically, it states that key fields must only be of type 'C' (character) or 'N' (numeric). This error typically arises when you attempt to define a key field using an unsupported data type.
  
  Cause:
  
  Incorrect Data Type: The key field is defined with a data type that is not allowed, such as 'D' (date), 'T' (time), or any other type that is not 'C' or 'N'.
  Data Model Configuration: The configuration of the data model or database table may have been set up incorrectly, leading to the inclusion of unsupported data types as key fields.
  
  
  Solution:
  
  Check Data Types: Review the definition of the key fields in your data model or database table. Ensure that all key fields are defined as either character ('C') or numeric ('N').
  Modify Key Fields: If you