---
schema_version: "1"
id: 32b94885cafc835c961c836656bedbc0b833c45e993fe08c9c9c6e52b4eb97ec
title: RsrchStdyRandomizationBlock
collection: legacydeveloper
version: current
locale: en-us
portal_url: https://docs.salesforce.com/legacydeveloper/current/en-us/life_sciences_dev_guide/sforce_api_objects_rsrchstdyrandomizationblock.md
canonical_url: https://developer.salesforce.com/docs/atlas.en-us.life_sciences_dev_guide.meta/life_sciences_dev_guide/sforce_api_objects_rsrchstdyrandomizationblock.htm
source_site: developer.salesforce.com
content_type: documentation
content_hash: 4319a6728da258c9a89b05895cbbf53c471e716c35f2bbee998bf627c66807bf
description: Represents the details of a block that’s generated through the parameters specified in the research study randomization. This object is available in API version 61.0 and later.
---
# RsrchStdyRandomizationBlock

Represents the details of a block that’s generated through the parameters specified in the research study randomization. This object is available in API version 61.0 and later.

## Supported Calls

create(), delete(), describeLayout(), describeSObjects(), getDeleted(), getUpdated(), query(), retrieve(), search(), undelete(), update(), upsert()

## Fields

### CurrentBlockItemSeqNumber

- **Type**: int
- **Properties**: Create, Filter, Group, Sort, Update
- **Description**: The sequence number of the item in the research study randomization block.

### LastReferencedDate

- **Type**: dateTime
- **Properties**: Filter, Nillable, Sort
- **Description**: The timestamp for when the current user last viewed a record related to this record.

### LastViewedDate

- **Type**: dateTime
- **Properties**: Filter, Nillable, Sort
- **Description**: The timestamp for when the current user last viewed this record. If this value is null, it’s possible that this record was referenced (LastReferencedDate) and not viewed.

### Name

- **Type**: string
- **Properties**: Autonumber, Defaulted on create, Filter, idLookup, Sort
- **Description**: The name of the research study randomization block.

### OwnerId

- **Type**: reference
- **Properties**: Create, Defaulted on create, Filter, Group, Sort, Update
- **Description**: The ID of the object assigned to the territory.
    
    This field is a polymorphic relationship field.
- **Relationship Name**: Owner
- **Refers To**: Group, User

### ResearchStdyRandomizationId

- **Type**: reference
- **Properties**: Create, Filter, Group, Sort, Update
- **Description**: The research study randomization associated with the research study randomization block.
    
    This field is a relationship field.
- **Relationship Name**: ResearchStdyRandomization
- **Refers To**: ResearchStdyRandomization

### RsrchStdyRndmCriteriaSrcId

- **Type**: reference
- **Properties**: Create, Filter, Group, Nillable, Sort, Update
- **Description**: The Research study criteria source associated with the research study randomization block.
    
    This field is a polymorphic relationship field.
- **Relationship Name**: RsrchStdyRndmCriteriaSrc
- **Refers To**: CareProgramSite, RsrchStdyRandomizationCrit, devopsimpkg11\_\_CardFrameworkConfiguration\_\_c, devopsimpkg11\_\_DRBatchQueue\_\_c, devopsimpkg11\_\_DRBulkData\_\_c, devopsimpkg11\_\_DREncryption\_\_c, devopsimpkg11\_\_DRWorker\_\_c, devopsimpkg11\_\_Interface\_DRGeneric\_\_c, devopsimpkg11\_\_TestResult\_\_c, devopsimpkg11\_\_TriggerSetup\_\_c, devopsimpkg11\_\_UISettings\_\_c, devopsimpkg11\_\_VlocityDataPack\_\_c, devopsimpkg11\_\_VlocityDocuSignTemplate\_\_c, devopsimpkg11\_\_VlocityErrorLogEntry\_\_c, devopsimpkg11\_\_VlocityScheduledJob\_\_c, devopsimpkg11\_\_VlocityTrackingEntry\_\_c

### Status

- **Type**: picklist
- **Properties**: Create, Filter, Group, Restricted picklist, Sort, Update
- **Description**: Specifies the status of the research study randomization block.
- **Possible values**:
    - AllocationComplete—Allocation Complete
    - Available
    - InProgress—In Progress

## Associated Objects

This object has the following associated objects. If the API version isn’t specified, they’re available in the same API versions as this object. Otherwise, they’re available in the specified API version and later.

[RsrchStdyRandomizationBlockChangeEvent](https://developer.salesforce.com/docs/atlas.en-us.life_sciences_dev_guide.meta/life_sciences_dev_guide/sforce_api_associated_objects_change_event.htm "A StandardObjectNameChangeEvent object is available for each object that supports Change Data Capture. You can subscribe to a stream of change events using Change Data Capture to receive data tied to record changes in Salesforce. Changes include record creation, updates to an existing record, deletion of a record, and undeletion of a record. A change event isn’t a Salesforce object—it doesn’t support CRUD operations or queries. It’s included in the object reference so you can discover which Salesforce objects support change events.")

Change events are available for the object.

[RsrchStdyRandomizationBlockFeed](https://developer.salesforce.com/docs/atlas.en-us.life_sciences_dev_guide.meta/life_sciences_dev_guide/sforce_api_associated_objects_feed.htm "StandardObjectNameFeed is the model for all feed objects associated with standard objects. These objects represent the posts and feed-tracked changes of a standard object.")

Feed tracking is available for the object.

[RsrchStdyRandomizationBlockHistory](https://developer.salesforce.com/docs/atlas.en-us.life_sciences_dev_guide.meta/life_sciences_dev_guide/sforce_api_associated_objects_history.htm "StandardObjectNameHistory is the model for all history objects associated with standard objects. These objects represent the history of changes to the values in the fields of a standard object.")

History is available for tracked fields of the object.

[RsrchStdyRandomizationBlockShare](https://developer.salesforce.com/docs/atlas.en-us.life_sciences_dev_guide.meta/life_sciences_dev_guide/sforce_api_associated_objects_share.htm "StandardObjectNameShare is the model for all share objects associated with standard objects. These objects represent a sharing entry on the standard object.")

Sharing is available for the object.