Rich Data Types for Custom Metadata
Beyond Simple Text Fields
Competing products offer dropdowns. Nodinite offers a complete metadata ecosystem. Custom Metadata offers 13 data types for new fields that capture complete business context. Every value is entered or picked by a user; none is calculated or loaded from another system.
- Select and Check Box - Gold/Silver/Bronze SLA and Owner names (one value), or multiple compliance tags such as GDPR + HIPAA + PCI (several values)
- Text Field, Text Area, and Markdown - Short codes, longer notes, and formatted documentation
- Number - Volumes and counts
- Link and Item Link - URLs to documentation and runbooks, and a reference to one other Repository item
- Table - Version history, configuration matrices, test results
- Attachment - Diagrams, runbooks, certificates, Excel files
- Shared File - A reusable file from the File Library, governed by the SharedFilePolicy System Parameter
- Image - Photos, logos, and architecture visuals from the centralized Image Library
- Mermaid Diagram - Visual workflows and data flows written as Mermaid text
Add or manage Custom Metadata shows how to configure each data type.
Rich Data Types Overview
Define Once"] roSimple["fa:fa-font Simple Types
Text Field, Text Area, Number"] roSelection["fa:fa-caret-down Selection Types
Select, Check Box"] roStructured["fa:fa-table Structured and Reference Types
Table, Link, Item Link,
Attachment, Shared File, Image"] roAdvanced["fa:fa-bolt Rich Content Types
Markdown, Mermaid Diagram"] roUseCase1["fa:fa-star SLA Levels
Gold/Silver/Bronze"] roUseCase2["fa:fa-shield-halved Compliance
GDPR + HIPAA + PCI"] roUseCase3["fa:fa-book Documentation
Runbooks, Diagrams"] roUseCase4["fa:fa-diagram-project Visual Context
Flows, Approval Chains"] roMetadata ==> roSimple roMetadata ==> roSelection roMetadata ==> roStructured roMetadata ==> roAdvanced roSelection --> roUseCase1 roSelection --> roUseCase2 roStructured --> roUseCase3 roAdvanced --> roUseCase4 style roMetadata fill:#2678BD,stroke:#2678BD,stroke-width:3px,color:#fff style roSimple fill:#93d16d,stroke:#3F827B,stroke-width:2px style roSelection fill:#93d16d,stroke:#3F827B,stroke-width:2px style roStructured fill:#93d16d,stroke:#3F827B,stroke-width:2px style roAdvanced fill:#93d16d,stroke:#3F827B,stroke-width:2px style roUseCase1 fill:#FFD525,stroke:#E47528,stroke-width:2px style roUseCase2 fill:#FFD525,stroke:#E47528,stroke-width:2px style roUseCase3 fill:#FFD525,stroke:#E47528,stroke-width:2px style roUseCase4 fill:#FFD525,stroke:#E47528,stroke-width:2px
Rich data types (green) enable diverse use cases (yellow). From simple dropdowns to Mermaid diagrams, Custom Metadata captures complete business context.

The Data Type list when you add a Custom Metadata field.
All 13 Data Types
These are the data types the Data Type picker offers when you create a field, with their names as they appear in the UI.
| Data Type | Stores | Typical use |
|---|---|---|
| Text Field | One line of text | Codes, short names, phone numbers |
| Text Area | Several lines of text | Notes, instructions |
| Markdown | Formatted text, rendered as HTML | Rich documentation with lists and links |
| Mermaid Diagram | Mermaid syntax, rendered as a diagram | Flows, approval chains, state transitions |
| Link | A URL | Runbooks, architecture pages, approval records |
| Item Link | A reference to one item of any type that supports Custom Metadata | Point from one entity to a related one |
| Select | One value from a list | SLA Level, Owner, Environment |
| Check Box | Multiple selections from an array of check boxes | Compliance Tags, Technology Stack, flags |
| Table | Rows with user-defined columns | Version history, configuration matrices |
| Attachment | A file stored on the value | Diagrams, runbooks, certificates |
| Number | A number | Volumes, counts |
| Image | A reference to an image in the Image Library | Logos, architecture pictures |
| Shared File | A reference to a file in the File Library | One shared PDF or schema used by many entities |
Note
Older fields may use the legacy Multi Select, Date, or Date Time types; new fields can't be created with them. Use Check Box when a field needs several values.
Note
Custom Fields, the older and separate feature, can load values through plugins. Custom Metadata values are always entered by users.
Select Fields (Single Value Dropdown)
Tip
Users with Create permissions can use the Quick Add feature to add new options directly from the dropdown, so you update selection lists without leaving the current form.
SLA Level
- Gold (4-hour response, 99.9% uptime)
- Silver (8-hour response, 99% uptime)
- Bronze (24-hour response, 98% uptime)
Benefits
- Consistent SLA definitions across all integrations
- SLA level in alert content, so responders prioritize correctly (see Alert Enrichment)
- Portfolio analytics: "Show all Gold SLA integrations"
Owner
- Henrik (Finance integrations)
- Sarah (HR integrations)
- Ahmed (Supply Chain integrations)
- Michael (IT infrastructure)
Benefits
- Standardized owner names (no typos, no variations)
- The owner's name in alert content, so the responder knows who to call
- Ownership reports: "Show all integrations owned by Henrik"
Environment
- Production
- Test
- Development
- Sandbox
Benefits
- Clear environment classification
- Make it one of the Mandatory Fields so every Integration states its environment
- Filter production-only integrations for compliance audits
Check Box Fields (Multiple Values)
A Check Box field is the multi-value type: users make multiple selections from an array of check boxes.
Compliance Tags
Values: GDPR, HIPAA, PCI DSS, SOX, ISO 27001, CCPA
Example Usage
- Integration "Payment-Processing": [GDPR, PCI DSS]
- Integration "Healthcare-Claims": [HIPAA, GDPR]
- Integration "Employee-Directory": [GDPR, SOX]
- Integration "Financial-Reporting": [SOX, ISO 27001]
Benefits
- A single integration can have multiple compliance requirements
- Filter queries: "Show all integrations with GDPR AND PCI DSS" (two filter rows) or "GDPR OR HIPAA" (two values in one row)
- Compliance breach: filter by tag → hand the list to the legal team instantly
Technology Stack
Values: .NET, Java, Python, BizTalk, MuleSoft, Boomi, Azure Logic Apps, AWS Lambda
Example Usage
- Service "Order-API": [.NET, Azure Logic Apps]
- Service "Payment-Gateway": [Java, AWS Lambda]
- Service "Data-Transformer": [Python, Azure Functions]
Benefits
- Technical debt analysis: "Show all integrations using deprecated technology"
- Context for responders: the alert shows which technology team knows the Service
- Migration planning: "Identify all BizTalk integrations for cloud migration"
Links (URLs)
Runbook Links
- Field: "Runbook URL"
- Value:
https://docs.company.com/runbooks/payment-failover.pdf
Where It Appears
- In alerts: "Emergency Procedure: [View Runbook]" (see Alert Enrichment)
- In the Web Client: a clickable link next to the integration name
- In webhooks: the JSON payload includes the URL for automation
Benefits
- Instant access to recovery procedures during incidents
- No hunting for documentation during 3 AM emergencies
- The runbook is always current (one source of truth)
Architecture Diagrams
- Field: "Architecture Diagram"
- Value:
https://docs.company.com/architecture/order-to-cash.png
Benefits
- Visual understanding of system dependencies
- New team members onboard faster
- Troubleshooting with full context
Approval Emails
- Field: "Approval Email"
- Value:
https://outlook.office365.com/mail/inbox/id/AAMkADY...
Benefits
- Audit trail for deployments
- Compliance: "Show proof of approval for all Production integrations"
- Dispute resolution: "Who approved this deployment?"
Tables (Structured Data)
Version History
| Version | Deployed | Changes | Approved By |
|---|---|---|---|
| 3.2.1 | 2024-11-01 | Bug fix: timeout handling | Henrik |
| 3.2.0 | 2024-10-15 | Feature: retry logic | Sarah |
| 3.1.5 | 2024-09-20 | Security patch | IT Security |
Benefits
- Complete deployment history embedded in metadata
- Audit trail for compliance
- Rollback planning: "When was the last stable version deployed?"
Test Results
| Test Type | Date | Result | Notes |
|---|---|---|---|
| Load Test | 2024-10-25 | ✅ Pass | 10,000 TPS |
| Security Scan | 2024-10-20 | ✅ Pass | No vulnerabilities |
| Compliance Audit | 2024-09-15 | ✅ Pass | GDPR compliant |
Benefits
- Quality assurance embedded in operational systems
- Compliance evidence: "Show me test results for all Production integrations"
Configuration Matrix
| Environment | Database | API Key | Timeout |
|---|---|---|---|
| Production | SQL-PROD-01 | prod-key-xyz | 30s |
| Test | SQL-TEST-01 | test-key-abc | 60s |
| Dev | SQL-DEV-01 | dev-key-123 | 120s |
Benefits
- Environment-specific configuration documented
- Troubleshooting: "Which database does Test use?"
Warning
Never store real API keys, passwords, or connection strings in Custom Metadata: values can be propagated into alerts. See the sensitive data safety rule in Alert Enrichment.
Check Box Flags
A Check Box field with a short list of values also works well for yes/no-style flags.
Common Use Cases
Approved for Production
- ☑ Yes (integration can deploy to Production)
- ☐ No (integration blocked from Production)
GDPR Compliant
- ☑ Yes (integration reviewed and compliant)
- ☐ No (requires GDPR assessment)
24/7 Support Required
- ☑ Yes (on-call team assigned)
- ☐ No (business hours support only)
Encryption Enabled
- ☑ Yes (data encrypted in transit and at rest)
- ☐ No (encryption not required)
Benefits of Check Box Fields
- Simple yes/no decisions with clear semantics
- Portfolio queries: "Show all integrations without 24/7 support" (the flag with Invert condition)
- Compliance filters: "Show all GDPR integrations not yet compliant"
File Attachments
Architecture Diagram Uploads
Upload: PNG, PDF, Visio files
Benefits
- Visual documentation embedded in the operational system
- No external SharePoint/Confluence dependency
- Diagrams displayed in the Web Client
- Linked in alerts: "Architecture: [View Diagram]"
Runbooks
Upload: PDF, Word, Excel files
Benefits
- Emergency procedures always accessible
- Replace the file when the procedure changes
- Included in alert emails as links (not embedded, to save bandwidth)
Certificates
Upload: PEM, CER, PFX files
Benefits
- Security certificates documented with the integration
- Pair the file with a Text Field for the expiry date, so the date is visible next to the certificate
Test Data
Upload: Excel, CSV, JSON files
Benefits
- Sample data sets for testing
- The QA team has instant access to test scenarios
Shared Files
A Shared File value references a reusable file in the File Library instead of storing a private copy on each value. Use it when many entities should point to the same PDF, schema, or guide. The SharedFilePolicy System Parameter controls which file types you can upload and how Shared File links open.
Image Fields (Library Reference)
The Image field type (introduced in Nodinite 7.5.0) references an image stored in the centralized Image Library instead of embedding a binary file copy per metadata value. Multiple entities can reference the same image without duplication, and updating the image in the library updates every entity that references it.
How It Differs from File Attachments
| File Attachment | Image Field | |
|---|---|---|
| Storage | Binary copy per metadata value | Single shared entry in Image Library |
| Searchable gallery | ❌ No | ✅ Yes — search by name, title, description, tag |
| Alt text for accessibility | ❌ None | ✅ Stored centrally on the image |
| Size control | ❌ None | ✅ 8 size options at display time |
| Reuse across entities | ❌ No — upload again per entity | ✅ Yes — reference once, display everywhere |
| Updates | Replace per entity | Update in library → all references updated |
Image Use Cases
System Logo
- Field: "System Logo"
- Value: Image from library (e.g.,
sap-logo) - Displayed: Thumbnail on the System entity form and in Mapify node popups
Every SAP system entity shows the official logo without uploading it repeatedly, and a logo update means replacing the image once, in place, in the Image Library: all system entities reflect it instantly.
Architecture Diagram
- Field: "Architecture Diagram"
- Value: Image from library (e.g.,
order-to-cash-architecture) - Displayed: Medium-size image on the Integration entity form
The visual dependency map is embedded directly on the Integration, and screenshot updates propagate automatically to all referencing entities.
Team Photo
- Field: "Team Photo"
- Value: Image from library (e.g.,
integration-team-2026) - Displayed: Small thumbnail beside the owner metadata on entity forms
Configuring the Image Field
When you define an Image Custom Metadata field, you can set a default display size that applies wherever the field is rendered. You can override the size per insertion in Articles, but it's fixed at the field-definition level for entity forms.
| Size Option | Max Width | Recommended For |
|---|---|---|
| xxs | 64 px | Icon-sized logos |
| xs | 128 px | Small thumbnails |
| s | 256 px | Small illustrations |
| m | 384 px | Medium screenshots (default) |
| l | 512 px | Standard diagrams |
| xl | 768 px | Large architecture diagrams |
| xxl | 1024 px | Extra-large diagrams |
| Original | Full width | Full-width visuals |
Rendered Output
In entity forms, the Image field renders as:
<img src="/api/ImageAssets/name/sap-logo/File"
alt="SAP ERP logo"
class="ndi-s"
style="max-width: 256px; height: auto;">
The Image Library serves the image from a stable, name-based URL that works identically across Test and Production environments.
Where Image Fields Appear
Custom Metadata Image fields render in every context where Custom Metadata is displayed:
- Repository entity forms (Integrations, Systems, Services, Endpoints, Message Types, and more)
- C4 Diagrams inspector panel (right-hand properties panel when a node is selected)
- C4 Diagram node popups
- Mapify entity cards
Mermaid Diagrams (Live Visual Workflows)
Approval Chain Diagram
graph LR
Dev[Developer] -->|Submits| TechLead[Tech Lead]
TechLead -->|Approves| Architect[Architect]
Architect -->|Approves| VP[VP Operations]
VP -->|Deploys| Production[Production]
Benefits
- Visual approval workflow embedded in metadata
- Business users understand the governance process
- Edit the diagram text when the process changes
Data Flow Diagram
graph TD
Customer[Customer Portal] -->|Order| API[Order API]
API -->|Validate| PaymentGW[Payment Gateway]
PaymentGW -->|Charge| Bank[Bank System]
Bank -->|Confirm| Warehouse[Warehouse System]
Warehouse -->|Ship| Customer
Benefits
- Visual system dependencies
- Troubleshooting: "Where did the order fail?"
- New team members understand the flow instantly
State Transitions
stateDiagram-v2
[*] --> Development
Development --> Testing
Testing --> Approval
Approval --> Production
Production --> Maintenance
Maintenance --> Production
Production --> [*]
Benefits
- Integration lifecycle visualization
- Governance: "What approvals are required to reach Production?"
Number and Item Link Fields
Number
- Field: "Peak Transaction Volume"
- Value:
15000
In Portfolio Filtering, a Number field matches exact integers only, for example Peak Transaction Volume = 15000. There are no range operators such as < or >=.
Item Link
An Item Link field links to one item, so related documentation stays connected without copying it. Use a Link field for URLs outside Nodinite.
- The linked item can be of any type that supports Custom Metadata: Integration, System, Service, Contract, Message Type, End Point, Resource, Article, BPM, Domain, Map, or C4 Diagram (see Entity Coverage).
- The field definition can't restrict which of these types are allowed.
- Only the item's type and ID are stored; the name is looked up each time the value is displayed, so a renamed item shows its new name.
- Clicking the value opens the linked item's page in a new tab.
Configuration Guide
Step 1: Define Rich Data Type Fields
In the Web Client, open Repository → Custom Metadata and follow Add or manage Custom Metadata.
Select Field
- Click Add Custom Metadata
- Name: "SLA Level"
- Data Type: Select
- Values: Gold, Silver, Bronze
- Save
Check Box Field
- Name: "Compliance Tags"
- Data Type: Check Box
- Values: GDPR, HIPAA, PCI DSS, SOX, ISO 27001
- Save
Link Field
- Name: "Runbook URL"
- Data Type: Link
- Save
Attachment Field
- Name: "Architecture Diagram"
- Data Type: Attachment
- Save
Image Field
- Name: "System Logo"
- Data Type: Image
- Default size:
s(256 px) — suitable for entity form thumbnails - Save
- On each entity, click Choose from Image Library to select the image for that entity
Step 2: Assign Values to Integrations
Open Add or manage Integration and assign values:
- SLA Level: Gold (select from dropdown)
- Compliance Tags: GDPR, PCI DSS (pick several values)
- Runbook URL:
https://docs.company.com/runbooks/payment-failover.pdf - Architecture Diagram: Upload file (payment-architecture.png)
Step 3: Use in Alerts and Filters
In alerts (Alert Enrichment):
- Email, through the alarm stylesheet: "SLA: Gold, Compliance: GDPR + PCI DSS"
- HTTP Webhook JSON: the Custom Metadata values are part of the payload
In filters (Portfolio Filtering):
- "Show all Gold SLA integrations": SLA Level = Gold
- "Show all integrations with GDPR compliance": Compliance Tags = GDPR
- "Show all integrations without runbook URL": Runbook URL with Exists + Invert condition
Next Steps
- Add or manage Custom Metadata – Create rich data type fields
- Add or manage Integration – Assign values to integrations
- Alert Enrichment – See how rich data types appear in alerts
- Image Library – Upload and manage images for Image fields and Articles
Related Topics
- Custom Metadata Overview – Hub page for all Custom Metadata features
- Entity Coverage – Where Custom Metadata applies
- Alert Enrichment – Rich data types in email and webhook alerts
- Mandatory Fields – Make rich data type fields required
- Portfolio Filtering – Query by Select and Check Box values
- Image Library – Centralized image management for Image fields
- File Library – Shared files for Shared File fields
- Governance Enforcement – Use Select fields for approval workflow
- Compliance Automation – Use Check Box for compliance tags
- Custom Fields – The legacy feature with plugin-based dynamic values