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Brian Miller 2026-06-22 22:28:36 -07:00 committed by GitHub
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@ -68,6 +68,15 @@ Define field permissions for sensitive or custom fields:
<required>true</required>
</fields>
```
**A field counts as required (and must be omitted from `<fieldPermissions>`) when ANY of these are true:**
- Field metadata contains `<required>true</required>`
- Field is a **Master-Detail** relationship (`<type>MasterDetail</type>`) — implicitly required on the child object
- Field is a **system required** standard field (e.g. `Name` on most objects, `OwnerId`, `CreatedById`)
- Field is a **Lookup** with `<required>true</required>` set
**Detection:** read the field's `*.field-meta.xml` before emitting a `<fieldPermissions>` entry. If you cannot read it, do not emit the entry — flag the field for manual review.
- Use format `ObjectName.FieldName` for field references
- Set both readable and editable to true when the user needs edit access; editable implies readable
- If all fields should be visible, can alternatively enable the "viewAllFields" object permission
@ -175,13 +184,17 @@ Important:
Before deploying, verify:
- [ ] fullName, label, description set
- [ ] Permissions follow least privilege
- [ ] No required fields in `<fieldPermissions>`
- [ ] No required fields in `<fieldPermissions>` — for each entry, verified the field's `*.field-meta.xml` does NOT have `<required>true</required>` and is NOT a Master-Detail
- [ ] No duplicate permissions
- [ ] No lengthy comments
## What Causes Deployment Failure
- **Field permissions on required fields:** Any required field in `<fieldPermissions>` fails deployment. Required fields cannot have FLS; omit them entirely. Always confirm from object/field metadata that a field exists and is not required—never assume.
- **Field permissions on required fields:** Any required field in `<fieldPermissions>` fails deployment with an error like:
> `You can't edit field-level security for a required field, universally required field, or master-detail relationship field. Remove [Object.Field__c] from the permission set.`
Required fields cannot have explicit FLS — the platform grants it automatically. Omit them entirely. Always confirm from the field's `*.field-meta.xml` that the field is not required (see Step 3 "What counts as required") before adding it; never assume.
- **Incorrect API names:** Using the wrong name or missing suffixes (e.g. missing `__c` for custom objects, fields, tabs) cause failure.
## Deployment