Link Enterprise provides a web service endpoint that will allow you to update a document metadata. 

Update File metadata

Name of the filenet system configured in Link Enterprise.

cmsName

Value should always be set to "filenet" to let Link Enterprise know which configured content system to search.

selectedCMS

A JSON array where each index is a json object with the keys "md1" and "md2". Where md1 is the column name, and md2 is the value to be inserted in that column. Sharepoint allows multi value field. while updating multi value fields separate the field values with "!DFLOW!".

mdArray

filenet folder where the document need to be updated.

location

repository

domain

If true, Does an Checkout on filenet document.

checkout

Update datetime property in this provided format.

dateTimeFormat

Filenet Class name attached to the document. Default is "Document"

type

If true, cancel checkout on filenet Document.

cancelCheckout

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Update

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S3 Endpoints

Link Enterprise

Welcome

Technical Overview

Installation and Base Configuration Guide

SharePoint Implementation Guide

Link Enterprise for M365

Link Enterprise for S3

Repository Specific Guides

Purpose of Guide

Customer Resources Required

Configuration Overview

Viewing and Attachment List Options

DocManager

Custom API Usage

Workflow Connect

AuditLink

DocMigrator

Accounts Payable

Publisher

System Messages

Utilities: CMS Load (Unsupported S3)

Utilities: Link Maintenance

Utilities: Metadata Push (MDPro)

Utilities: Cleaning Gateway Errors

Utilities: Archiving Gateway Data

Utilities: Attachment List Dashboard

Working with the API Gateway and SCRUD Test Harness

Solution Guide

Class/Method Plug-In’s

Link Enterprise BADI’s

SCRUD API’s

Ping and Load API's

Link Enterprise SCRUD Web Services

Untitled

FileNet Endpoints

SharePoint Endpoints

Link Enterprise BAPI Web Services

Useful / Common Link Enterprise Methods

Overall CMS API Notes

SAP Code Vulnerability Analyzer (CVA)

log4j Update

Developers Guide

Agnostic Guides

Hardware Requirements

Unpacking ZIP Package

Initial Configuration

Start & Stop Order

Setting up Firefox Certificate

Connecting to L4i Configuration

Installation Guide

Transformations

Transformation Engine

Connectors

Connections

SSL Certificates

Configuration

Introduction

Architecture Overview

Minimum Requirements

SuccessFactors Technical Overview

Linking SF to BTP Landscape

HTML5 Application Registrations

Extension Admin Permissions

SuccessFactors App Setup

BTP Configuration

API User

Create Pick List

Create Approval Workflow

SuccessFactors Objects

Permission Provisioning

Export Category and Document Type

Import Category and Document Types

UI Configuration

SuccessFactors Configuration

SuccessFactors