How To Fix UACC030 - Tables with key fields have different lengths

UACC030 - Overview

• Message type: E = Error

• Message class: UACC - Message Class for Concurrent Costing Adapter

• Message number: 030

• Message text: Tables with key fields have different lengths

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message UACC030 - Tables with key fields have different lengths ?

  The SAP error message UACC030, which states "Tables with key fields have different lengths," typically occurs when there is a mismatch in the lengths of key fields between two or more database tables that are being used in a join or a similar operation. This can happen in various scenarios, such as when defining a view, creating a join in a query, or during data processing where multiple tables are involved.
  
  Cause:
  
  Mismatched Key Field Lengths: The primary cause of this error is that the key fields in the tables being joined or compared have different data types or lengths. For example, if one table has a key field defined as CHAR(10) and another as CHAR(20), this discrepancy can lead to the error.
  Data Type Differences: Even if the lengths are the same, differences in data types (e.g., CHAR vs. VARCHAR) can also trigger this error.
  Changes in Table Structure: If the structure of