getting below error for the below code Error reading CDC annotations: mapping field does not exist [Analytics] @AbapCatalog.sqlViewName: 'ZDSP_DD03M' @AbapCatalog.compiler.compareFilter: true @AbapCatalog.preserveKey: true @AccessControl.authorization

The error message you are encountering, "Error reading CDC annotations: mapping field does not exist [Analytics]", indicates there is an issue with the mapping fields defined for Change Data Capture (CDC) in your ABAP CDS view. Specifically, the fields mentioned in your CDC mapping might not match the actual field names defined in your view or the tables involved in the join.

Let’s break down the CDC mappings and potential issues that could be causing this error:

1. **Field Name Mappings**: Ensure that the names specified in the `viewElement` and the corresponding `tableElement` actually exist in the defined view. For instance, the fields you are using in the `viewElement` should match the selected fields in your CDS view.

2. **Field Existence**: Check if all fields being referenced in your CDC mapping are present in the respective tables. For example:
   - `DD03L` must have columns `TABNAME`, `FIELDNAME`, etc.
   - `DD04L` should have `ROLLNAME`, etc.
   - `DD04T` should define `ROLLNAME`, etc.
   - `DD01L` needs to provide `DOMNAME`, etc.

3. **Consistency between CDC Annotations and SELECT Fields**: Ensure that the fields declared in the `select` clause within your CDS view correspond to those in the CDC mapping. If any field has been removed or renamed in the CDS view, you will need to update your CDC mapping accordingly.

4. **Data Element Naming**: Match the names in your mapping against the entity names in your logic strictly. Ensure there are no typographical errors or discrepancies.

### Suggested Steps to Fix:

1. **Validate Fields in the Database Tables**: Open the Data Dictionary in the SAP system and confirm that each of the fields in your CDC annotations actually exists within the relevant tables.

2. **Update Selecting Fields**: Check the `select` clause and ensure that all field names correctly reflect the renamed or otherwise updated fields in the associated tables.

3. **Review CDC Mapping**: Update the annotations if any changes were made to the columns or their data dictionary definitions.

Here's a specific example from your code to clarify:

- **Mapping Entry**: Ensure that for the mapping with `DD03L`, fields like `tabname`, `fieldname`, etc., exist in your joined view definition.
  
```abap
tableElement: ['TABNAME','FIELDNAME','AS4LOCAL','AS4VERS','POSITION']
```

Make sure that:
- `TABNAME`, `FIELDNAME`, `AS4LOCAL`, `AS4VERS`, and `POSITION` are present in your select statement and match their respective use in the CDC annotations.

By going through these steps, you should be able to isolate the problem causing the error regarding the mapping fields not existing, and you can adjust your code accordingly. If the issue persists, consider looking for more details in the system logs or error messages that could provide deeper insights into the exact cause.