E-Notebook Enterprise: compound registration may fail if columns Rxn ID/Product ID are missing

Description

When using the RegCompoundSelector addin, the default configuration looks for values to calculate component percentage in specific column positions. If the user removes one or two of the first columns (Rxn ID/Product ID), the following error may be displayed:

Solution

1. Identify affected experiments where compound registration fails.
2. Open the Products table in the reaction/registration section of the ELN template.
3. Verify the presence of the Rxn ID and Product ID columns at the beginning of the table.
4. If missing, add the Rxn ID and Product ID columns back at the start of the table (maintain expected column order).
5. Save the experiment/template, and refresh the ELN page if needed.

6. Retry product registration to confirm the error is resolved.

   You can also compare with a working experiment to validate column order and configuration.