# HTTP Action requests, responses and failure handling

*Omnistudio Consultant Study Guide · Integration Procedures · Last updated October 27, 2026 · https://www.certifyforce.com/study-guide/omnistudio-consultant/integration-procedures/http-action-requests-responses-and-failure-handling*

What goes into and comes out of an Integration Procedure HTTP Action: methods, parameters, headers and body, Send and Response JSON paths, XML replies, timeouts, retries, Try-Catch Blocks and Failure Conditional Formulas, and how it differs from the Omniscript HTTP Action.

- Certification: Salesforce Omnistudio Consultant
- Exam section: Integration Procedures
- Study guide: https://www.certifyforce.com/study-guide/omnistudio-consultant

**Official exam objective:**

> Explain, dependent upon customer use case, the configuration and management of HTTP Actions within an integration procedure to securely connect to and process data from external REST/SOAP endpoints, including authentication and request/response mapping.

## What the exam expects

- Describe how a request is built: method, Request URL, REST Options params and headers (content-type and charset) and Request Body.
- Recommend a Transform plus Send JSON Path to send only what a partner needs, and Response JSON Path to keep only what later steps need.
- Handle XML replies with a Transform and Escape XML Response; the action makes REST calls only.
- Match failure symptoms to Timeout, Retry Count, a Try-Catch Block or a Failure Conditional Formula, and use Pre-Action logging in Preview.
- Compare the Integration Procedure HTTP Action with the Omniscript HTTP Action.

Key terms: **Send JSON Path / Response JSON Path** (trim the JSON going into, or coming out of, a step); **Failure Response** (key-value pairs added to the output when a step or block fails); **Failure Conditional Formula** (a custom failure test that runs after the step); **Try-Catch Block** (a block that catches a failing step and returns a response); **Retry Count** (number of times to retry a failed action).

## Key facts

| Fact | Detail | Source |
|---|---|---|
| HTTP methods | GET, POST, PUT, PATCH, DELETE | [HTTP Action for Integration Procedures](https://help.salesforce.com/s/articleView?id=xcloud.os_http_action_for_integration_procedures_53002.htm&language=en_US&type=5) |
| Default content-type | text/plain; charset=ISO-8859-1; key content-type is lowercase | [HTTP Action for Integration Procedures](https://help.salesforce.com/s/articleView?id=xcloud.os_http_action_for_integration_procedures_53002.htm&language=en_US&type=5) |
| Retry Count | Times to retry the action when it fails | [HTTP Action for Integration Procedures](https://help.salesforce.com/s/articleView?id=xcloud.os_http_action_for_integration_procedures_53002.htm&language=en_US&type=5) |
| Send JSON Path | Trims incoming JSON before the action runs | [Integration Procedure Actions](https://help.salesforce.com/s/articleView?language=en_US&id=xcloud.os_integration_procedure_actions_50165.htm&type=5) |
| Response JSON Path | Trims output JSON after the action runs | [Integration Procedure Actions](https://help.salesforce.com/s/articleView?language=en_US&id=xcloud.os_integration_procedure_actions_50165.htm&type=5) |
| Failure Conditional Formula | TRUE marks the step failed and adds Failure Response pairs | [Integration Procedure Actions](https://help.salesforce.com/s/articleView?language=en_US&id=xcloud.os_integration_procedure_actions_50165.htm&type=5) |
| Try-Catch setup | Fail on Block Error on the block; Fail on Step Error on catching steps | [Handle Errors by Using a Try-Catch Block](https://help.salesforce.com/s/articleView?id=xcloud.os_handle_errors_using_try_catch_blocks_49845.htm&language=en_US&type=5) |
| XML replies | Data Mappers take XML input; Escape XML Response removes escapes | [XML and JSON in Omnistudio Data Mappers](https://help.salesforce.com/s/articleView?id=xcloud.os_xml_in_dataraptors_46723.htm&language=en_US&type=5), [HTTP Action for Integration Procedures](https://help.salesforce.com/s/articleView?id=xcloud.os_http_action_for_integration_procedures_53002.htm&language=en_US&type=5) |
| Omniscript HTTP Action | Needs a trusted URL with all CSP directives | [Calling Web Services with the Omniscripts HTTP Action](https://help.salesforce.com/s/articleView?id=sf.os_http_action_12374.htm&language=en_US&type=5) |

## Check yourself

- Why does raising Retry Count not help a partner API that is consistently slow?
- When should a consultant add a Failure Conditional Formula to an HTTP Action?
- Why put a Data Mapper Transform after an HTTP Action whose partner replies in XML?
- Which property passes only one node of a large reply to later steps?

## Sources

- [HTTP Action for Integration Procedures](https://help.salesforce.com/s/articleView?id=xcloud.os_http_action_for_integration_procedures_53002.htm&language=en_US&type=5)
- [Integration Procedure Actions](https://help.salesforce.com/s/articleView?language=en_US&id=xcloud.os_integration_procedure_actions_50165.htm&type=5)
- [Manipulate JSON with the Send/Response Transformations Properties](https://help.salesforce.com/s/articleView?id=xcloud.os_manipulate_json_with_the_send_response_transformations_properties_22367.htm&language=en_US&type=5)
- [Handle Errors by Using a Try-Catch Block](https://help.salesforce.com/s/articleView?id=xcloud.os_handle_errors_using_try_catch_blocks_49845.htm&language=en_US&type=5)
- [SOAP Services: Defining a Class from a WSDL Document](https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_callouts_wsdl2apex.htm)
- [XML and JSON in Omnistudio Data Mappers](https://help.salesforce.com/s/articleView?id=xcloud.os_xml_in_dataraptors_46723.htm&language=en_US&type=5)
- [Create the Integration Procedure with the HTTP Action](https://help.salesforce.com/s/articleView?id=sf.os_create_the_integration_procedure_with_the_http_action_53207.htm&language=en_US&type=5)
- [Calling Web Services with the Omniscripts HTTP Action](https://help.salesforce.com/s/articleView?id=sf.os_http_action_12374.htm&language=en_US&type=5)
- [Response Action for Integration Procedures](https://help.salesforce.com/s/articleView?id=xcloud.os_response_action_for_integration_procedures_54655.htm&language=en_US&type=5)
- [Map Inputs and Outputs for Transformations](https://help.salesforce.com/s/articleView?id=xcloud.os_dataraptor_transform_data_mappings_46630.htm&language=en_US&type=5)
- [Omnistudio Data Mappers](https://help.salesforce.com/s/articleView?id=xcloud.os_omnistudio_dataraptors_45587.htm&language=en_US)

## About the full unit

The "Core concepts", "Exam traps" and "Worked scenario" sections of this unit, its 12 linked practice questions, and unlimited timed mock exams are included with the Omnistudio Consultant pack (USD $19): https://www.certifyforce.com/practice-exams