# X_SUBJECT_TREATMENT_INVALID

## Means

a defineSubject treatment cannot be carried out

## Typical cause

a blank retain reason, an anonymize naming a column the entity does not have (or its key), 'delete' on an append-only or soft-delete entity, a treatment for a table nothing reaches, or a kept row whose parent the erase deletes. The cause names the table and the field

## Fix

`tables: { <table>: { retain: '<why it is kept>' } } in defineSubject — the cause names the field to change`

[Jobs](/error-codes#jobs)