How To Fix RSDODSO194 - Key for table &1 is too long (maximum &3 bytes)

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDODSO - Messages for ODS Objects

• Message number: 194

• Message text: Key for table &1 is too long (maximum &3 bytes)

What causes this issue?

The key from table &V1& has a length of &V2& bytes. Only a maximum of
&V3& bytes are allowed.
Warning: It is possible that the current length of &V2& bytes is less
than the maximum length mentioned above (&V3& bytes) but this message
appears anyway. That means that the key length that the DataStore object
would have on a DB6 database is greater than the maximum length of &V3&
bytes.
The DB6 key length is generally greater than the key length on the
current database. If the DB6 key length is greater than the maximum
length (&V3& bytes), this message appears but it is not possible to
display the DB6 key length in this message.

System Response

In the customer system this is merely a warning, since the maximum
length depends on the type of database. If no error occurs when you
activate the DataStore object, that means that your database supports
longer keys. <ZH>However, an activation error can still occur if you
transport the object to a system with a different database.</>
In the SAP system this is an error because the standard Business Content
must support all databases.

How to fix this error?

Remove InfoObjects from the key of the DataStore object until the length
of the key is equal to or less than &V3& bytes.
<ZH>Ignore this warning only if you are sure that all of your systems
now run and will in the future run on databases that support keys of
this length.</>

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSDODSO194 - Key for table &1 is too long (maximum &3 bytes) ?

  The SAP error message RSDODSO194 indicates that a key for a specific table is too long, exceeding the maximum allowed length in bytes. This error typically occurs in the context of DataStore Objects (DSOs) or InfoProviders in SAP BW (Business Warehouse) when the key fields defined for a DSO exceed the maximum length allowed by the system.
  Cause:
  
  Key Field Length Exceeded: The combined length of the key fields defined in the DSO exceeds the maximum limit set by SAP. This can happen if you have defined too many key fields or if the individual fields are too long.
  Data Model Design: The design of the data model may not adhere to best practices, leading to overly complex keys.
  Data Type Mismatch: Sometimes, the data types of the key fields may not be compatible with the expected lengths.
  
  Solution:
  
  Review Key Fields: Check the key fields defined for the DSO. Ensure that the total length of the key fields does not exceed the maximum allowed length (which is typically 240 bytes for a DSO).
  Reduce Key Length: If possible, reduce the number of key fields or the length of individual key fields. Consider whether all fields are necessary as key fields.
  Change Data Model: If the current design is not optimal, consider redesigning the data model to simplify the key structure.
  Use Surrogate Keys: If applicable, consider using surrogate keys that can uniquely identify records without relying on multiple fields.
  Check Data Types: Ensure that the data types of the key fields are appropriate and do not contribute to excessive length.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional guidance or updates related to this error.
  Documentation: Review SAP BW documentation for best practices in designing DataStore Objects and InfoProviders.
  Testing: After making changes, test the DSO to ensure that the error is resolved and that data can be loaded successfully.
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance.