@@ -327,7 +327,7 @@ export const enMetadataForms: NonNullable<TranslationData['metadataForms']> = {
       },
       "indexes.fields": {
         label: "Fields",
-        helpText: "Column names of this object, in key order (e.g. status, owner). Nothing checks them when you save or publish: a name that is not a stored column makes the SQL driver skip the whole index, with a warning in the server log."
+        helpText: "Column names of this object, in key order (e.g. status, owner). Saving does not check them; publishing and os validate refuse a name that is not a field of this object. A field that is not a stored column (a formula, say) makes the SQL driver skip the whole index, with a warning in the server log."
       },
       "indexes.unique": {
         label: "Unique",
 
@@ -327,7 +327,7 @@ export const esESMetadataForms: NonNullable<TranslationData['metadataForms']> =
       },
       "indexes.fields": {
         label: "Campos",
-        helpText: "Nombres de columna de este objeto, en el orden de la clave (p. ej., status, owner). Nada los comprueba al guardar ni al publicar: un nombre que no sea una columna almacenada hace que el driver SQL omita el índice entero, con una advertencia en el registro del servidor."
+        helpText: "Nombres de columna de este objeto, en el orden de la clave (p. ej., status, owner). Guardar no los comprueba; publicar y os validate rechazan un nombre que no sea un campo de este objeto. Un campo que no sea una columna almacenada (una fórmula, por ejemplo) hace que el driver SQL omita el índice entero, con una advertencia en el registro del servidor."
       },
       "indexes.unique": {
         label: "Único",
 
@@ -327,7 +327,7 @@ export const jaJPMetadataForms: NonNullable<TranslationData['metadataForms']> =
       },
       "indexes.fields": {
         label: "フィールド",
-        helpText: "このオブジェクトの列名を、キーの順に指定します（例：status、owner）。保存時にも公開時にも検査されません。保存される列ではない名前があると、SQL ドライバーはそのインデックス全体をスキップし、サーバーログに警告を出します。"
+        helpText: "このオブジェクトの列名を、キーの順に指定します（例：status、owner）。保存時には検査されませんが、公開時と os validate では、このオブジェクトのフィールドではない名前が拒否されます。保存される列ではないフィールド（数式など）があると、SQL ドライバーはそのインデックス全体をスキップし、サーバーログに警告を出します。"
       },
       "indexes.unique": {
         label: "一意",
 
@@ -327,7 +327,7 @@ export const zhCNMetadataForms: NonNullable<TranslationData['metadataForms']> =
       },
       "indexes.fields": {
         label: "字段",
-        helpText: "本对象的列名，按键的顺序排列（例如 status、owner）。保存或发布时不会检查它们：若某个名称不是已存储的列，SQL 驱动会跳过整个索引，并在服务器日志中记录一条警告。"
+        helpText: "本对象的列名，按键的顺序排列（例如 status、owner）。保存时不会检查它们；发布和 os validate 会拒绝不是本对象字段的名称。若某个字段不是已存储的列（例如公式字段），SQL 驱动会跳过整个索引，并在服务器日志中记录一条警告。"
       },
       "indexes.unique": {
         label: "唯一",
 
@@ -504,12 +504,14 @@ export const objectForm = defineForm({
         // (`name`, `fields`, `unique`); `type` and `partial` are tombstones and
         // need no row.
         //
-        // `fields` is a free-text list, the `highlightFields` row's face. No
-        // authoring door judges its names: not the schema parse, not the publish
-        // door, not `os validate` (`validate-object-field-refs` leaves it to the
-        // storage layer by design). The SQL driver's `syncDeclaredIndexes` skips
-        // an index naming a column the table does not have, logging a warning,
-        // so the help text claims that and no refusal.
+        // `fields` is a free-text list, the `highlightFields` row's face. The
+        // schema parse, so a draft save, does not judge its names. Publishing and
+        // `os validate` refuse one that is not a field of this object
+        // (`object-field-ref-unknown`, `error`, since #20432). The SQL driver's
+        // `syncDeclaredIndexes` skips an index naming a column the table does
+        // not have, logging a warning, which is what still befalls a real field
+        // that is not a stored column (a formula). The help text claims exactly
+        // those three.
         //
         // `unique` is a select over `global` / `organization` ONLY, as the
         // ruling says. The node is `boolean | 'global' | 'organization'`: a
@@ -526,7 +528,7 @@ export const objectForm = defineForm({
           helpText: 'Database indexes on this object\'s table. The SQL driver creates each one the table lacks when it syncs the table; a sync never drops an index.',
           fields: [
             { field: 'name', label: 'Name', type: 'text', helpText: 'Physical index name. Unset: generated from the table and the columns (e.g. idx_task_status).' },
-            { field: 'fields', label: 'Fields', widget: 'string-tags', required: true, helpText: 'Column names of this object, in key order (e.g. status, owner). Nothing checks them when you save or publish: a name that is not a stored column makes the SQL driver skip the whole index, with a warning in the server log.' },
+            { field: 'fields', label: 'Fields', widget: 'string-tags', required: true, helpText: 'Column names of this object, in key order (e.g. status, owner). Saving does not check them; publishing and os validate refuse a name that is not a field of this object. A field that is not a stored column (a formula, say) makes the SQL driver skip the whole index, with a warning in the server log.' },
             { field: 'unique', label: 'Unique', type: 'select', helpText: 'Uniqueness scope (ADR-0120). Unset: not unique. The deprecated bare true (it means global) is not offered; an index that carries it keeps it until you pick a scope.', options: [
               { label: 'Global — one holder across the installation, over exactly these columns', value: 'global' },
               { label: 'Organization — one holder per organization (the driver prepends the organization column)', value: 'organization' },