LDAP Node - Bug / Enhancement

[jkoch22]

Bug Description

On the LDAP Update node the replace and delete operations don't allow for null values. The LDAPts module allows you for a null value to be specified on either of these operations to clear the attribute (I created a crude script trying this and it worked as intended). I think for the remove operation, it probably makes sense to be able specify a value as a sort of "filter" but still allow the user to clear the attribute regardless of whether they know the current value or not.

Currently. if I don't specify a value on the remove operation, LDAP (Active Directory) returns an error due to it trying to update the attribute with an empty string. If I use a null expression, I get an error from n8n stating argument must be a string (was: object) [item 0].

To Reproduce

1. Set up LDAP node with credentials
2. Set to Update operation
3. Specify DN of user to update
4. Select Remove under Update Attributes and specify attribute to clear.
5. Leave blank or specify null expression.

Expected behavior

On the Remove operation, the attribute is cleared without specifying a value.
On the Replace operation, the attribute is cleared when the value isn't specified or is null.

Operating System

Debian 12

n8n Version

1.75.2

Node.js Version

N/A

Database

SQLite (default)

Execution mode

main (default)

[Joffcom]

Hey @jkoch22,

We have created an internal ticket to look into this which we will be tracking as "N8N-8221"