Grant API permission

The Field Nation connector signs in to Salesforce with the integration user's username, password, and security token. Salesforce handles that sign-in through its SOAP API login() call.

Salesforce is tightening control over this call. Starting December 1, 2026, Salesforce only accepts a SOAP API login() from users who have the Use Any API Auth permission, so only users an admin has approved can still sign in this way. This is part of Salesforce's plan to retire SOAP API login() in its Summer '27 release (Assign Use Any API Auth Permission for SOAP login() (Release Update)).

One thing is required: grant Use Any API Auth to your Field Nation integration user through a permission set.

Action items

Grant Use Any API Auth to the integration user's permission set

The integration user is the Salesforce user the connector signs in as.

Open the integration user's permission set

1. In Salesforce, click the Gear Icon at the top right → Setup
2. In Quick Find on the left, type Permission Sets and click Permission Sets
3. Open the permission set assigned to your integration user

Enable Use Any API Auth for the integration user

This is the same System Permissions page used to set up a Dedicated Integration User (see System permissions).

1. On the permission set's page, under System, click System Permissions
2. Click Edit at the top center of the page. The permission checkboxes become editable
3. Find Use Any API Auth in the alphabetical list (use your browser's find to search for API Auth) and select its checkbox
4. Click Save

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Verify the integration user can sign in

1. In Configure Field Nation, save the integration user's credentials again to run the connection test (see Test connection)
2. In Salesforce, open the integration user's record and check Login History (optional)

Sources

• Salesforce: Assign Use Any API Auth Permission for SOAP login() (Release Update)
• Salesforce: SOAP API login() Retirement & new Security Requirements
• Salesforce: login() API reference