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Maestro user guide

Last updated Dec 3, 2025

BPMN-supported elements

The Maestro canvas conforms to the BPMN 2.0 standard, and supports the following Start, Intermediate, and End elements for execution. All elements are supported for modeling.

Legend:

✅ = Available for execution

❌ = Not available for execution

Events

Start execution elements

Type	Normal	Event sub-process	Event sub-process non-interrupting
None	✅	❌	❌
Message*	✅	❌	❌
Timer	✅	❌	❌
Error	❌	❌	❌
Signal	❌	❌	❌
Conditional	❌	❌	❌
Escalation	❌	❌	❌
Compensation	❌	❌	❌
Cancel	❌	❌	❌
Terminate	❌	❌	❌
Link	❌	❌	❌
Multiple	❌	❌	❌
Multiple parallel	❌	❌	❌

All elements are supported for modeling. The ❌ mark only refers to execution support.

* These elements are supported for execution via Integration Service connectors.

Intermediate execution elements

Type	Catch	Boundary	Boundary non-interrupting	Throw
None	❌	❌	❌	✅
Message*	✅	✅	✅	✅
Timer	✅	✅	✅	❌
Error	❌	✅	❌	❌
Signal	❌	❌	❌	❌
Conditional	❌	❌	❌	❌
Escalation	❌	❌	❌	❌
Compensation	❌	❌	❌	❌
Cancel	❌	❌	❌	❌
Terminate	❌	❌	❌	❌
Link	❌	❌	❌	❌
Multiple	❌	❌	❌	❌
Multiple parallel	❌	❌	❌	❌

All elements are supported for modeling. The ❌ mark only refers to execution support.

These elements are supported for execution via Integration Service connectors.

End execution elements

Type	End
None	✅
Message*	✅
Timer	❌
Error	✅
Signal	❌
Conditional	❌
Escalation	❌
Compensation	❌
Cancel	❌
Terminate	✅
Link	❌
Multiple	❌
Multiple parallel	❌

All elements are supported for modeling. The ❌ mark only refers to execution support.

* These elements are supported for execution via Integration Service.

Non-events

Tasks

BPMN construct	Supported in Modeler	Supported in Execution
Undefined Task	✅	✅
User Task*	✅	✅
Service Task	✅	✅
Receive Task**	✅	✅
Send Task**	✅	✅
Business Rule Task	✅	✅
Script Task	✅	✅
Manual Task	✅	✅
Receive Task (instantiated)	✅	❌

All elements are supported for modeling. The ❌ mark only refers to execution support.

* With UiPath Apps.

** These elements are supported for execution via Integration Service connectors.

Gateways

BPMN construct	Supported in Modeler	Supported in Execution
Exclusive Gateway	✅	✅
Parallel Gateway	✅	✅
Inclusive Gateway	✅	✅
Event Gateway	✅	✅
Complex Gateway	✅	❌

All elements are supported for modeling. The ❌ mark only refers to execution support.

Markers

BPMN construct	Supported in Modeler	Supported in Execution
Multi-instance parallel	✅	✅
Multi-instance sequential	✅	✅
Loop	✅	❌
Compensation	❌	❌

All elements are supported for modeling. The ❌ mark only refers to execution support.

Data

BPMN construct	Supported in Modeler	Supported in Execution
Data Object	✅	❌
Data Store	✅	❌

All elements are supported for modeling. The ❌ mark only refers to execution support.

Artifacts

BPMN construct	Supported in Modeler	Supported in Execution
Text Annotation	✅	❌
Group	✅	❌

All elements are supported for modeling. The ❌ mark only refers to execution support.

Participants

BPMN construct	Supported in Modeler	Supported in Execution
Pool	✅	❌
Lane	✅	❌

All elements are supported for modeling. The ❌ mark only refers to execution support.

Sub-processes

BPMN construct	Supported in Modeler	Supported in Execution
Sub-process	✅	✅
Call activity	✅	✅
Event sub-process	❌	❌
Transaction	❌	❌

Note:

UiPath Maestro™ does not support collapsed pools (also known as black box pools), which are pools that do not display their internal process flow.

On this page

Events
Non-events
Participants
Sub-processes

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