# Field Service Sobject Create Configure > Headless 360 REST API deployment step for creating sObject records. Handles describe-based field discovery, required-field derivation, entity-relationship ordering, and composite graph transactions. Use this skill when a designer skill (or a user directly) needs to create sObject records after design confirmation, including non-setup sObject creation. - Skill: `gabrielmoreira/field-service-sobject-create-configure` (Agent Skill) - Install (CLI): `npx skillmds@latest add gabrielmoreira/field-service-sobject-create-configure` - Raw SKILL.md: https://api.skillmd.com/api/skills/gabrielmoreira/field-service-sobject-create-configure/raw - Safety review: pending - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: Product & Planning - Author: gabrielmoreira (https://skillmd.com/u/gabrielmoreira) - Updated: 2026-09-09 - Page: https://skillmd.com/skills/gabrielmoreira/field-service-sobject-create-configure --- # Managing Sfs Sobject Create ## When to Use This Skill Create sObject records via Headless 360 REST API. Describes the flow (describe → query → create), Field Service data model DAG, field requirements, insertion order, and common pitfalls. Reference when creating Skill, WorkType, SkillRequirement, or other Field Service sObjects. ## Workflow # Create an sObject record via headless-360 **Be helpful** — understand business context before creating records. Consider the business domain of the sObject being created and iterate through short, structured questions (ask/why/impact) until no ambiguities remain that would change what gets created. Skip questions when answers are already obvious from context or existing data. ## Flow ### Phase 1: **Describe** — `dispatch_readonly` GET `/services/data/v67.0/sobjects//describe` ### Phase 2: **Query existing records** — learn the org's shape... `dispatch_readonly` GET `/services/data/v67.0/query`, `queryParams.q = "SELECT FROM ORDER BY CreatedDate DESC LIMIT 20"`. Use it to: match naming/value conventions, see which optional fields are actually populated, catch duplicates, and confirm write access before spending a create. ### Phase 3: **Create** — `dispatch` POST to create records. Single... ## Data model DAG Example (Field Service junction pattern — same pattern applies to any sObject DAG based on the data shape): ```text Skill (0C5) WorkType (08q) ← roots (parallel) └──────────┬──────────┘ SkillRequirement (0Hx) ← junction (last) ``` ## Fields and insertion order Scan describe `fields[]` for `createable:true` (skip the rest — describe is large). Such a field is **required** when also `nillable:false` and `defaultedOnCreate:false` (defaulted ones the platform fills — omit). Two kinds: - **Scalar** → put its value in the create body. - **`type:"reference"`** → foreign key. If `nillable:false` (hard edge), create parent in `referenceTo[]` first. Polymorphic refs list many — pick one. Topo-sort: roots first, pass each `id` to dependents. `nillable:true` refs → optional, PATCH later. Pitfalls: - Base sObject CRUD is NOT in the `discover` corpus — skip discover, go straight to describe → dispatch. - `CANNOT_INSERT_UPDATE_ACTIVATE_ENTITY` on write → that sObject blocks sObject-REST writes (e.g. `ExternalDataSource`, `CustomPermission`); use Tooling/Metadata API instead. - `400`/`403` → likely a CRUD/FLS/sharing gap for the gateway user, not a payload bug — don't blindly retry the body. ## Example — WorkType Describe `WorkType`, apply the rule to `fields[]`. The fields that come back `createable:true`, `nillable:false`, `defaultedOnCreate:false` are the required ones — build the body from *those*, don't assume field names. Then query a few existing WorkTypes to see conventions and dupes. Then create with the derived body, e.g. ```json { "url": "/services/data/v67.0/sobjects/WorkType", "method": "POST", "body": { "Name": "Standard Repair", "EstimatedDuration": 2 } } ``` ───── **Runtime context (Headless 360 / agentic):** When this skill runs in the Headless 360 / agentic context, prefer the platform dispatch tool (``dispatch`` in the hosted Headless 360 MCP; ``dispatch`` in the local-dev MCP) over CLI tools (``sf project deploy``, ``sfdx``, shell commands) when possible. The operations available to you are listed below in ``steps:``; each has been verified against the live org. Call the dispatch tool against the canonical paths. CLI fallback is acceptable only when no API path exists for a given capability. ## Critical Constraints **Preconditions:** - Target sObject is createable and not on the sObject-REST block list. (check: `GET /services/data/v67.0/sobjects/{N}/describe returns `createable: true` at the top level. A `CANNOT_INSERT_UPDATE_ACTIVATE_ENTITY` on POST means the sObject blocks base REST writes (e.g. `ExternalDataSource`, `CustomPermission`) — switch to Tooling or Metadata API.`) - Gateway user has object CRUD + relevant FLS for the required createable fields. (check: `400 / 403 with `INSUFFICIENT_ACCESS_OR_READONLY` on POST → CRUD/FLS gap, not a payload bug. Grant the user's profile / permset the Create on the entity and Edit-access on every field in the body.`) - For composite/graph transactions, the caller has independently topo-sorted parents before children within each graph node's `records`. (check: ``referenceId`s used with `@{...}` MUST refer to a record earlier in the same graph. Wrong ordering surfaces as `INVALID_REFERENCE_ID` on the child node, and the entire graph rolls back atomically.`) ## Operations Reference Operations grouped by purpose. Use these as the building blocks for the workflows above. ### Summary | Operation | Purpose | Status | Call | Depends on | |-----------|---------|--------|------|------------| | `describe-sobject` | read | — | `GET /services/data/v67.0/sobjects/{SObjectName}/describe` | — | | `query-existing-records` | read | — | `GET /services/data/v67.0/query` | `describe-sobject` | | `create-sobject-record` | write | — | `POST /services/data/v67.0/sobjects/{SObjectName}` | `describe-sobject` | | `composite-graph-create` | write | — | `POST /services/data/v67.0/composite/graph` | `describe-sobject` | | `update-sobject-record` | write | — | `PATCH /services/data/v67.0/sobjects/{SObjectName}/{Id}` | `create-sobject-record` | | `delete-sobject-record` | write | — | `DELETE /services/data/v67.0/sobjects/{SObjectName}/{Id}` | — | ### Dependency graph ```mermaid graph TD describe_sobject["describe-sobject (read)"] query_existing_records["query-existing-records (read)"] create_sobject_record["create-sobject-record (write)"] composite_graph_create["composite-graph-create (write)"] update_sobject_record["update-sobject-record (write)"] delete_sobject_record["delete-sobject-record (write)"] describe_sobject --> query_existing_records describe_sobject --> create_sobject_record describe_sobject --> composite_graph_create create_sobject_record --> update_sobject_record ``` ### Read operations #### `describe-sobject` Fetch the field catalog for {SObjectName}. Scan `fields[]` for `createable:true`; hard-required fields are those also with `nillable:false` and `defaultedOnCreate:false`. `type:"reference"` fields are FKs — hard edges when `nillable:false`. Base sObject CRUD is intentionally OUT of the discover corpus (skill §Pitfalls); agents must skip discover and call describe directly. **Call:** `GET /services/data/v67.0/sobjects/{SObjectName}/describe` **Inputs:** - `SObjectName` *(`string`)* — API name of the sObject (e.g. WorkType, Skill, SkillRequirement). Path segment. **Output:** SObjectDescribeSObjectResult. Load-bearing keys: `createable`, `updateable`, `deletable`, `fields[]` (each with `name`, `type`, `createable`, `nillable`, `defaultedOnCreate`, `referenceTo[]`, `picklistValues[]`). Payload is large (>60KB for WorkType) — filter to `createable:true` fields before reasoning. #### `query-existing-records` Warm-read a small window of existing rows to match naming conventions, spot dupes, and confirm write access before spending a create. Skill §Flow.2 suggested SOQL: `SELECT FROM ORDER BY CreatedDate DESC LIMIT 20`. **Call:** `GET /services/data/v67.0/query` **Inputs:** - `q` *(`string`)* — SOQL query. Pass via `queryParams.q` (URL-encoded on the wire). LIMIT 20 or fewer is the recommended window for convention scanning. **Depends on:** `describe-sobject` **Output:** `{totalSize, done, records: []}`. `records[]` is the shape an agent scans for conventions. `done:false` + `nextRecordsUrl` surface when > 200 rows — irrelevant at LIMIT 20. ### Write operations #### `create-sobject-record` Create ONE record. Body carries only fields that were `createable:true` on describe. For DAGs (parents + children + junctions), prefer composite/graph so all rows land atomically in one transaction. 201 → `{id, success, errors:[]}`; non-2xx returns `[{errorCode, message, fields:[]}]`. **Call:** `POST /services/data/v67.0/sobjects/{SObjectName}` **Inputs:** - `SObjectName` *(`string`)* — API name of the sObject (path segment). - `body` *(`object`)* — Field/value map. Only include fields with `createable:true` on describe; omit `defaultedOnCreate:true` fields (the platform fills them). **Depends on:** `describe-sobject` **Output:** 201 → `{id: "<15/18-char id>", success: true, errors: []}`. 4xx → array of `{errorCode, message, fields}`. **Rollback:** delete-sobject-record **Notes:** ERROR CONTRACT: - `CANNOT_INSERT_UPDATE_ACTIVATE_ENTITY` → sObject blocks base REST writes; switch to Tooling / Metadata API. Common for `ExternalDataSource`, `CustomPermission`. - `INSUFFICIENT_ACCESS_OR_READONLY` → CRUD/FLS/sharing gap on the gateway user; don't retry the same body. - `REQUIRED_FIELD_MISSING` → re-check describe filter (some fields are createable+nillable:false only in specific record types). - `INVALID_FIELD_FOR_INSERT_UPDATE` → field is not `createable:true`; drop from body. #### `composite-graph-create` Atomically create a DAG of related records in one transaction. Skill §Data-model-DAG example: Skill + WorkType (roots) → SkillRequirement (junction). Use `referenceId` on each record and `@{parentRef.id}` in a child's FK field to bind at write time. Success returns 200 with per-node compositeResponse[] entries carrying per-child 201s. Any failure rolls back the ENTIRE graph. **Call:** `POST /services/data/v67.0/composite/graph` **Inputs:** - `body` *(`object`)* — `{graphs: [{graphId, compositeRequest: [{referenceId, method:"POST", url:"/services/data/v67.0/sobjects/", body:{...}}, ...]}]}`. Multiple graphs may share one call; each isolates atomicity. **Depends on:** `describe-sobject` **Output:** 200 → `{graphs: [{graphId, graphResponse: {compositeResponse: [{body:{id, success, errors}, httpHeaders, httpStatusCode, referenceId}]}, isSuccessful}]}`. `isSuccessful:false` + per-child 4xx bodies on any failure. **Rollback:** delete-sobject-record **Notes:** ERROR CONTRACT: - `INVALID_REFERENCE_ID` → child references a `referenceId` that appears LATER in the array or doesn't exist. Topo-sort the compositeRequest[] parents-first. - `LIMIT_EXCEEDED` → composite/graph caps at 500 records per graph and 75 graphs per call. - `MIXED_DML_OPERATION` → **the graph mixes setup-object sObjects (e.g. `Skill`, `Group`, `User`, `Permission*`) with non-setup sObjects (e.g. `WorkType`, `Account`, `Contact`) in one transaction — the platform forbids this even inside composite/graph.** Split into two calls: create setup-side in call 1, capture the id, then create non-setup-side + junction referencing that id in call 2. The skill's Skill+WorkType+SkillRequirement example REQUIRES this split. - Any HTTP 4xx on ANY child → the graph's entire compositeResponse rolls back; sibling children report `PROCESSING_HALTED` and DELETE cleanup is unnecessary for a failed graph. #### `update-sobject-record` Field-level update on an existing record. Use for late-bound `nillable:true` reference attachment (skill §Fields-and- insertion-order) or corrections. PATCH is field-merge, not full-replacement: only fields in the body change; omitted fields are untouched. 204 on success (no response body). **Call:** `PATCH /services/data/v67.0/sobjects/{SObjectName}/{Id}` **Inputs:** - `SObjectName` *(`string`)* - `Id` *(`string`)* — 15- or 18-char record id (path segment). - `body` *(`object`)* — Field/value map. Only include fields with `updateable:true` on describe. **Depends on:** `create-sobject-record` **Output:** 204 No Content on success. 4xx → same `[{errorCode, message, fields}]` shape as POST. #### `delete-sobject-record` Delete a record. Rollback target for create-sobject-record (single) and composite-graph-create (children where the transaction succeeded but a downstream verify failed). 204 on success. Note: composite/graph atomically rolls back on failure — DELETE is only needed after a SUCCESSFUL graph that a later validation rejects. **Call:** `DELETE /services/data/v67.0/sobjects/{SObjectName}/{Id}` **Inputs:** - `SObjectName` *(`string`)* - `Id` *(`string`)* **Output:** 204 No Content. 404 → id already gone (idempotent); treat as success.