TMH file format specification

A .tmh file is the project backup/migration format used by UiPath Test Manager. This document describes its structure, content, and encoding requirements in detail.

Archive structure

<package-name>.tmh               ← ZIP archive
├── manifest.json                ← Package metadata and object counts
└── objects/
    ├── requirements/
    │   └── requirements-{n}.json
    ├── testcases/
    │   └── testcases-{n}.json
    ├── teststeps/
    │   └── teststeps-{n}.json
    ├── testsets/
    │   └── testsets-{n}.json
    ├── testsettestcaseassignments/
    │   └── testsettestcaseassignments-{n}.json
    ├── requirementtestcaseassignments/
    │   └── requirementtestcaseassignments-{n}.json
    ├── objectlabels/
    │   ├── objectlabels-testcase-{n}.json
    │   ├── objectlabels-testset-{n}.json
    │   ├── objectlabels-requirement-{n}.json
    │   ├── objectlabels-testexecution-{n}.json
    │   └── objectlabels-testcaselog-{n}.json
    ├── customfieldvalues/
    │   ├── customfieldvalues-testcase-{n}.json
    │   └── customfieldvalues-requirement-{n}.json
    ├── customfieldlabels/
    │   └── customfieldlabels-{n}.json
    ├── customfielddefinitions/
    │   └── customfielddefinitions-{n}.json
    ├── attachments/
    │   ├── attachments-testexecution-{n}.json
    │   ├── attachments-requirement-{n}.json
    │   ├── attachments-testcaselog-{n}.json
    │   ├── attachments-teststeplog-{n}.json
    │   └── attachments-project-{n}.json
    ├── testexecutions/
    │   ├── testexecutions-Manual-Finished-{n}.json
    │   ├── testexecutions-Automated-Finished-{n}.json
    │   └── testexecutions-Mixed-Finished-{n}.json
    ├── testcaselogs/
    │   └── testcaselogs-{n}.json
    ├── teststeplogs/
    │   └── teststeplogs-{n}.json
    ├── testcaselog-assertions/
    │   └── testcaselogassertions-{n}.json
    ├── testcaselogresultoverrides/
    │   └── testcaselogresultoverrides-{n}.json
    ├── assertion-attachments/
    │   └── assertion-attachments-{n}.json
    ├── defects/
    │   └── defects-{n}.json
    ├── parameters/
    │   └── parameters-{n}.json
    ├── testsetpackages/
    │   └── testsetpackages-{n}.json
    ├── testsettestcaseparameters/
    │   └── testsettestcaseparameters-{n}.json
    ├── testsetschedules/
    │   └── testsetschedules-testset-{n}.json
    ├── objectfilters/
    │   └── objectfilters-testset-{n}.json
    ├── projectauthorization/
    │   └── projectauthorization-{n}.json
    ├── projectsettings/
    │   └── projectsettings.json         ← singular, no number suffix
    └── prompts/
        └── prompts-{n}.json

Remarque :

Only object types that were actually exported are present. Missing folders/files are silently skipped during import.

File naming conventions

Most object types — numbered chunks

Files are named <type>-{n}.json where {n} starts at 0 for real exports produced by the system. For example:

requirementtestcaseassignments-0.json
testcases-0.json
teststeps-0.json

The importer scans all files in each folder, so both 0-based and 1-based numbering work when hand-crafting files.

Large exports may be split across multiple files (testcases-0.json, testcases-1.json, etc.) — the importer reads all files in the folder.

Type-scoped file names

Several object types scope their files by the object type they belong to. The importer reads all files in the folder regardless of the qualifier, but real exports always use these names:

Type d'objet	Modèle de nom de fichier
ÉtiquetteObjets (ObjectLabels)	objectlabels-testcase-{n}.json, objectlabels-testset-{n}.json, objectlabels-requirement-{n}.json, …
ValeursChampPersonnalisé (CustomFieldValues)	customfieldvalues-testcase-{n}.json, customfieldvalues-requirement-{n}.json
Pièces jointes (Attachments)	attachments-testexecution-{n}.json, attachments-requirement-{n}.json, …
Exécutions de test	testexecutions-Manual-Finished-{n}.json, testexecutions-Automated-Finished-{n}.json, …
Object filters	objectfilters-testset-{n}.json
Planifications de l'ensemble de tests	testsetschedules-testset-{n}.json

Project settings — no number suffix

projectsettings/projectsettings.json

This file is always singular (no chunk number).

Encoding requirements

All JSON files must be encoded as UTF-8 without BOM.

Avertissement :

PowerShell 5.1's Set-Content -Encoding utf8 writes a UTF-8 BOM (EF BB BF). This causes JSON.parse in the browser to throw SyntaxError: Unexpected token at position 0. Always use [System.IO.File]::WriteAllText($path, $content, (New-Object System.Text.UTF8Encoding($false))) when creating .tmh files from PowerShell.

Schema versioning

The manifest.json carries a schemaVersion field (e.g., "1.0.16"). The importer uses this version together with [IntroducedIn] attributes on each DTO property to determine which fields to read. Fields introduced in a version newer than the package's schema version are ignored during deserialization.

Current latest version: 1.0.16

Version history summary:

Version	Notable additions
1.0.0	Initial: requirements, test cases, test steps, test sets, assignments, labels, attachments, defects, custom field values
1.0.1	preCondition on test cases
1.0.2	Test executions, test case log result overrides, assertions
1.0.4	Subset export (isSubsetExport, exportSubsetDetails)
1.0.5	Custom field labels
1.0.7	User-defined prompts
1.0.9	postCondition on test cases
1.0.10	Paramètres
1.0.11	Test set packages, folderKey/folderName on test sets, packageEntryPointUniqueId etc. on test cases
1.0.13	id field on attachments
1.0.14	studioWebFileId/studioWebProjectId on test cases; id on test-set/test-case assignments
1.0.15	assigneeEmail on test-set/test-case assignments
1.0.16	Project configuration (settings, governance, signatories), custom field definitions, project authorizations

manifest.json

Located at the root of the archive (not inside objects/).

{
  "objectCountDetails": {
    "testCases": 5,
    "testSets": 2,
    "requirements": 3,
    "objectLabels": 0,
    "attachments": 0,
    "testExecutions": 0,
    "testCaseLogs": 0,
    "testCaseResultOverrides": 0,
    "testSteps": 12,
    "testStepLogs": 0,
    "testSetTestCaseAssignments": 6,
    "requirementTestCaseAssignments": 4,
    "defects": 0,
    "customFieldValues": 0,
    "customFieldLabels": 0,
    "assertions": 0,
    "assertionScreenshots": 0,
    "testSetLabelFilters": 0,
    "userDefinedPrompts": 0,
    "parameters": 0,
    "testSetPackages": 0,
    "testSetTestCaseParameters": 0,
    "customFieldDefinitions": 0,
    "projectAuthorizations": 0
  },
  "project": {
    "name": "My Project",
    "description": "Project description",
    "projectPrefix": "MP"
  },
  "tmPackageId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
  "schemaVersion": "1.0.16"
}

Remarque :

Real exports also include a packageName field (the suggested download filename). The importer ignores it — omit it in hand-crafted files.

objects/ — JSON file schemas

Every object file uses a wrapper object whose single property is a JSON array. The array contains the individual object records.

requirements/{n}.json

{
  "requirements": [
    {
      "id": "550e8400-e29b-41d4-a716-446655440000",
      "name": "User can log in",
      "description": "The login form must accept valid credentials.",
      "foreignRef": "",
      "connectorRequirementId": "00000000-0000-0000-0000-000000000000"
    }
  ]
}

Champ	Saisie de texte	Remarques
id	GUID string	Unique per-requirement identifier
name	string	Required; max 255 chars
description	string	Can be empty string
foreignRef	string	External system reference; can be empty
connectorRequirementId	GUID string	Use "00000000-0000-0000-0000-000000000000" when not linked to a connector

testcases/{n}.json

{
  "testCases": [
    {
      "id": "550e8400-e29b-41d4-a716-446655440001",
      "version": null,
      "name": "Verify login with valid credentials",
      "inputParams": null,
      "description": "",
      "automationId": null,
      "automationTestCaseName": null,
      "automationProjectName": null,
      "foreignRef": "",
      "connectorTestCaseId": null,
      "preCondition": null,
      "postCondition": null,
      "packageEntryPointUniqueId": null,
      "packageIdentifier": null,
      "packageEntryPointName": null,
      "feedId": null,
      "packageSourceName": null,
      "studioWebFileId": null,
      "studioWebProjectId": null
    }
  ]
}

Champ	Saisie de texte	Remarques
id	GUID string	Unique per test case
version	string | null	null for manual test cases; "1.0.0" for automated test cases linked to a package version; "" for automated test cases without a fixed version
name	string	Required; max 255 chars
inputParams	string | null	JSON-encoded input parameters; null for manual
description	string	Rich text description; "" when absent
automationId	string | null	UiPath automation identifier; null for manual
automationTestCaseName	string | null	Automation display name; null for manual
automationProjectName	string | null	Automation project; null for manual
foreignRef	string	External system reference; "" when absent
connectorTestCaseId	string | null	Connector system ID; null when absent
preCondition	string | null (v1.0.1+)	Pre-condition text; null when absent; max 8000 chars
postCondition	string | null (v1.0.9+)	Post-condition text; null when absent; max 8000 chars
packageEntryPointUniqueId	string | null (v1.0.11+)	Package entry point GUID; null for manual
packageIdentifier	string | null (v1.0.11+)	Package ID; null for manual
packageEntryPointName	string | null (v1.0.11+)	Entry point name; null for manual
feedId	string | null (v1.0.11+)	Package feed ID; null for manual
packageSourceName	string | null (v1.0.11+)	Package source name; null for manual
studioWebFileId	string | null (v1.0.14+)	Studio Web file ID; null for manual
studioWebProjectId	string | null (v1.0.14+)	Studio Web project ID; null for manual

teststeps/{n}.json

{
  "testSteps": [
    {
      "id": "550e8400-e29b-41d4-a716-446655440010",
      "testCaseId": "550e8400-e29b-41d4-a716-446655440001",
      "orderNo": 0,
      "actionType": null,
      "description": "Navigate to the login page",
      "expectedResult": "Login page is displayed",
      "clipboardData": ""
    }
  ]
}

Champ	Saisie de texte	Remarques
id	GUID string	Unique per step
testCaseId	GUID string	Must reference an existing test case id
orderNo	Integer	0-based display order (first step = 0)
actionType	string | null	null for manual steps
description	string	Step action text
expectedResult	string	Expected outcome; "" when absent
clipboardData	string	Clipboard/screenshot data; max 8000 chars; usually ""

testsets/{n}.json

{
  "testSets": [
    {
      "id": "550e8400-e29b-41d4-a716-446655440020",
      "version": null,
      "name": "Regression Suite",
      "description": "",
      "source": "TestManager",
      "externalTestSetId": null,
      "sourceDetails": null,
      "folderKey": null,
      "folderName": ""
    }
  ]
}

Champ	Saisie de texte	Remarques
id	GUID string	Unique per test set
version	string | null	null for Test Manager–managed test sets
name	string	Required; max 255 chars
description	string	"" when absent
source	string	"TestManager" (default) or "Orchestrator" — this is a string, not an integer
externalTestSetId	string | null	External ID when source is "Orchestrator"; null otherwise
sourceDetails	string | null	Additional source metadata; null when absent
folderKey	string | null (v1.0.11+)	UiPath Orchestrator folder key; null if not linked
folderName	string (v1.0.11+)	Folder display name; "" if not linked; not stored in DB, informational only

testsettestcaseassignments/{n}.json

{
  "testSetTestCaseAssignments": [
    {
      "id": "550e8400-e29b-41d4-a716-446655440030",
      "testSetId": "550e8400-e29b-41d4-a716-446655440020",
      "testCaseId": "550e8400-e29b-41d4-a716-446655440001",
      "assigneeEmail": null
    }
  ]
}

Champ	Saisie de texte	Remarques
id	GUID string (v1.0.14+)	Assignment identifier
testSetId	GUID string	References a test set id
testCaseId	GUID string	References a test case id
assigneeEmail	string | null (v1.0.15+)	Assignee email; null if unassigned

requirementtestcaseassignments/{n}.json

{
  "requirementTestCaseAssignments": [
    {
      "requirementId": "550e8400-e29b-41d4-a716-446655440000",
      "testCaseId": "550e8400-e29b-41d4-a716-446655440001"
    }
  ]
}

Avertissement :

No id field. Unlike most other object types, requirement–test case assignments have only requirementId and testCaseId.

objectlabels/objectlabels-{objecttype}-{n}.json

Remarque :

File naming: Real exports use a type-qualified name such as objectlabels-testcase-1.json, objectlabels-testset-1.json, objectlabels-requirement-1.json, etc. The importer reads all files in the objectlabels/ folder, so the qualifier is not strictly required when hand-crafting files, but it is recommended to follow the convention.

{
  "objectLabels": [
    {
      "objectId": "550e8400-e29b-41d4-a716-446655440001",
      "name": "regression",
      "description": "",
      "labelType": 0,
      "objectType": "TestCase"
    }
  ]
}

Champ	Saisie de texte	Remarques
objectId	GUID string	ID of the labelled object
name	string	Label text
description	string	Label description; "" when absent
labelType	Integer	1 = system label (e.g. "manual", "automated"); 0 = user-defined label
objectType	string	"TestCase", "TestSet", "Requirement", "TestExecution", "TestCaseLog"

customfieldvalues/{n}.json

{
  "customFieldValues": [
    {
      "objectId": "550e8400-e29b-41d4-a716-446655440001",
      "objectType": "TestCase",
      "fieldName": "Priority",
      "fieldValue": "High"
    }
  ]
}

projectsettings/projectsettings.json

Introduced in schema version 1.0.16. Only present when "Export project configuration" is enabled.

{
  "projectTimeZone": "Europe/Vienna",
  "folderKey": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
  "governanceEnabled": true,
  "governedByDefault": false,
  "signatories": [
    {
      "signatoryId": "550e8400-e29b-41d4-a716-446655440099",
      "signatoryType": 0,
      "signatoryLastKnownDetails": "[e-mail]"
    }
  ]
}

Remarque :

Unlike all other object files, projectsettings.json is a direct object (not a wrapper array). The file contains a single flat JSON object.

Champ	Saisie de texte	Remarques
projectTimeZone	string | null	IANA timezone string (e.g., "Europe/Vienna")
folderKey	GUID | null	Linked Orchestrator folder
governanceEnabled	boolean | null	Whether governance is enabled for the project
governedByDefault	boolean | null	Whether new test cases are governed by default
signatories	array | null	List of approvers/signatories
signatories[].signatoryId	GUID	User or group ID
signatories[].signatoryType	Integer	0 = User, 1 = UserGroup
signatories[].signatoryLastKnownDetails	string	Display name or email at time of export

Remarque :

lastDisabledAt (the governance disable timestamp) is intentionally excluded from the export — it is an internal timestamp that is not meaningful for a re-imported project.

Rules and constraints

1. All IDs must be unique, valid GUIDs. Do not reuse IDs across objects of the same or different type.

2. Cross-references must resolve. A testCaseId in a test step or assignment must refer to a test case id present in the same package.

3. Wrapper objects are required. Even when the collection has one item, it must still be wrapped: { "testCases": [ {...} ] }, never a bare array or object.

4. null vs "" conventions: Use null for optional fields that are genuinely absent (e.g. automationId, inputParams, preCondition, connectorTestCaseId, all package* fields on manual test cases). Use "" only for fields that are always present as strings but happen to be empty (e.g. foreignRef, description, clipboardData). Mixing these up — particularly using "" where null is expected — can cause silent import failures.

5. objectCountDetails in the manifest should match actual counts of objects present, but the importer does not strictly validate counts — mismatches only affect the pre-import summary display.

6. UTF-8 without BOM is mandatory for all files.

Minimal valid TMH file (hand-crafted)

The smallest valid .tmh file that Test Manager will accept contains just a manifest.json:

{
  "objectCountDetails": { ... },
  "project": { "name": "Test Project", "description": "", "projectPrefix": "TP" },
  "tmPackageId": "<new-guid>",
  "schemaVersion": "1.0.16"
}

All objects/ subdirectories are optional. The importer silently skips any object type not present in the archive.