diff --git a/packages/nodes-base/credentials/SlackOAuth2Api.credentials.ts b/packages/nodes-base/credentials/SlackOAuth2Api.credentials.ts
index b56699fe6800f..0426ceee02daa 100644
--- a/packages/nodes-base/credentials/SlackOAuth2Api.credentials.ts
+++ b/packages/nodes-base/credentials/SlackOAuth2Api.credentials.ts
@@ -6,15 +6,12 @@ import {
 //https://api.slack.com/authentication/oauth-v2
 const userScopes = [
 	'chat:write',
-	'conversations:history',
-	'conversations:read',
 	'files:read',
 	'files:write',
 	'stars:read',
 	'stars:write',
 ];
 
-
 export class SlackOAuth2Api implements ICredentialType {
 	name = 'slackOAuth2Api';
 	extends = [
diff --git a/packages/nodes-base/nodes/Slack/MessageDescription.ts b/packages/nodes-base/nodes/Slack/MessageDescription.ts
index d5170aba67e90..8d91663155ca0 100644
--- a/packages/nodes-base/nodes/Slack/MessageDescription.ts
+++ b/packages/nodes-base/nodes/Slack/MessageDescription.ts
@@ -111,7 +111,7 @@ export const messageFields = [
 				],
 			},
 		},
-		description: 'Set the bot\'s user name.',
+		description: 'Set the bot\'s user name. This field will be ignored if you are using a user token.',
 	},
 	{
 		displayName: 'JSON parameters',
@@ -486,26 +486,6 @@ export const messageFields = [
 		},
 		description: `Timestamp of the message to be updated.`,
 	},
-	{
-		displayName: 'As User',
-		name: 'as_user',
-		type: 'boolean',
-		default: false,
-		displayOptions: {
-			show: {
-				authentication: [
-					'accessToken',
-				],
-				operation: [
-					'update'
-				],
-				resource: [
-					'message',
-				],
-			},
-		},
-		description: 'Pass true to update the message as the authed user. Bot users in this context are considered authed users.',
-	},
 	{
 		displayName: 'Update Fields',
 		name: 'updateFields',
diff --git a/packages/nodes-base/nodes/Slack/Slack.node.ts b/packages/nodes-base/nodes/Slack/Slack.node.ts
index 57fe569d228f9..befe931fb5a36 100644
--- a/packages/nodes-base/nodes/Slack/Slack.node.ts
+++ b/packages/nodes-base/nodes/Slack/Slack.node.ts
@@ -454,6 +454,10 @@ export class Slack implements INodeType {
 						body.username = this.getNodeParameter('username', i) as string;
 					}
 
+					// ignore body.as_user as it's deprecated
+
+					delete body.as_user;
+
 					if (!jsonParameters) {
 						const attachments = this.getNodeParameter('attachments', i, []) as unknown as Attachment[];
 						const blocksUi = (this.getNodeParameter('blocksUi', i, []) as IDataObject).blocksValues  as IDataObject[];
@@ -691,10 +695,6 @@ export class Slack implements INodeType {
 						ts,
 					};
 
-					if (authentication === 'accessToken') {
-						body.as_user = this.getNodeParameter('as_user', i) as boolean;
-					}
-
 					// The node does save the fields data differently than the API
 					// expects so fix the data befre we send the request
 					for (const attachment of attachments) {