How To Fix SA345 - Use entity types with matching versions

SAP Error Message - Details

• Message type: E = Error

• Message class: SA -

• Message number: 345

• Message text: Use entity types with matching versions

What causes this issue?

Relationships between entity types of different versions are not
allowed.

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?

Please check the syntax.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SA345 - Use entity types with matching versions ?

  The SAP error message SA345, which states "Use entity types with matching versions," typically occurs in the context of SAP's data modeling and integration processes, particularly when working with OData services or when using the SAP Business Application Studio or SAP Cloud Platform.
  Cause:
  The error arises when there is a mismatch between the versions of entity types being used in a request or operation. This can happen in several scenarios, such as:
  
  
  Version Mismatch: The client is trying to access an entity type that has a different version than what the server is expecting. This can occur if the service has been updated, and the client is still using an older version of the entity type.
  
  
  Service Definition Changes: If the OData service definition has been modified (e.g., new fields added, fields removed, or entity types renamed), and the client application has not been updated to reflect these changes, it can lead to this error.
  
  
  Caching Issues: Sometimes, caching mechanisms can cause the client to use outdated versions of entity types.
  
  
  Solution:
  To resolve the SA345 error, consider the following steps:
  
  
  Check Entity Type Versions: Ensure that the entity types being used in your request match the versions defined in the OData service. You can do this by checking the metadata of the OData service.
  
  
  Update Client Application: If the OData service has been updated, make sure to update your client application to use the latest version of the entity types. This may involve regenerating client proxies or updating the data model in your application.
  
  
  Clear Cache: If caching is suspected to be the issue, clear any caches in your application or client to ensure that the latest versions of the entity types are being used.
  
  
  Review Service Changes: If you have access to the service definition, review any recent changes made to the OData service that might have affected the entity types.
  
  
  Consult Documentation: Refer to the SAP documentation for the specific OData service you are using to understand the versioning and compatibility requirements.
  
  
  Contact Support: If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance.
  
  
  Related Information:
  
  OData Services: Understanding how OData services work and how to manage entity types and versions is crucial for troubleshooting this error.
  SAP Business Application Studio: Familiarize yourself with the tools and environments you are using, as they may have specific requirements or settings related to entity types and versions.
  Versioning Strategy: Implement a versioning strategy for your OData services to manage changes effectively and minimize compatibility issues.
  
  By following these steps, you should be able to identify and resolve the cause of the SA345 error in your SAP environment.