How To Fix UD801 - Navigation not possible since the model has diff. category than bus. obj.

SAP Error Message - Details

• Message type: E = Error

• Message class: UD - EDM - Enterprise Data Model

• Message number: 801

• Message text: Navigation not possible since the model has diff. category than bus. obj.

What causes this issue?

You wish to switch from a data model to the assigned object type.
However, this is not possible because this data model is not of the
business object category.

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 whether you are in the required data model.
If you would like to assign the data model a business object, two steps
are necessary.
First mark the field business object and save the data model.
Then go back to the object type. You switch to the Business Object
Repository and can create the object type there. The object is created
under the data model name and the short description of the data model
is transferred automatically.
However, it is also possible, after you have marked the field business
object and saved, to exit the Data Modeler and start the Business
Object Repository. Go to the change mode for the object types. There,
select the appropriate object type and then switch to process basic
data, where you can create the name of the current data model in the
field BO data model.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message UD801 - Navigation not possible since the model has diff. category than bus. obj. ?

  The SAP error message UD801, which states "Navigation not possible since the model has a different category than the business object," typically occurs in the context of SAP BusinessObjects or SAP BW (Business Warehouse) when there is an inconsistency between the data model and the business object you are trying to navigate to.
  Cause:
  
  Model and Business Object Mismatch: The error usually arises when the data model you are trying to access is not compatible with the business object. This can happen if the model is designed for a different category of business objects (e.g., a different type of report or data source).
  Incorrect Configuration: There may be a configuration issue where the model is not correctly set up to interact with the business object.
  Versioning Issues: If there are different versions of the model or business object, it may lead to compatibility issues.
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to access the specific model or business object.
  
  Solution:
  
  Check Model and Business Object Compatibility: Ensure that the model you are trying to access is compatible with the business object. You may need to consult the documentation or the data model design to confirm this.
  Review Configuration Settings: Check the configuration settings for both the model and the business object. Ensure that they are set up correctly and that there are no discrepancies.
  Update or Recreate the Model: If the model is outdated or incorrectly configured, consider updating it or recreating it to ensure compatibility with the business object.
  Check User Authorizations: Verify that the user has the necessary permissions to access both the model and the business object. If not, adjust the authorizations accordingly.
  Consult SAP Support: If the issue persists, consider reaching out to SAP support for further assistance. They may provide insights specific to your system configuration.
  
  Related Information:
  
  SAP Notes and Documentation: Check SAP Notes related to error UD801 for any specific patches or updates that may address this issue.
  SAP Community Forums: Engage with the SAP community forums where other users may have encountered similar issues and can provide insights or solutions.
  Training and Resources: Consider training resources or documentation on SAP BW and BusinessObjects to better understand the data model and business object interactions.
  
  By following these steps, you should be able to diagnose and resolve the UD801 error in your SAP environment.