diff --git a/packages/n8n-node/nodes/Probo/actions/cookieBanner/create.operation.ts b/packages/n8n-node/nodes/Probo/actions/cookieBanner/create.operation.ts
index 3b077d9b1..de7e00da1 100644
--- a/packages/n8n-node/nodes/Probo/actions/cookieBanner/create.operation.ts
+++ b/packages/n8n-node/nodes/Probo/actions/cookieBanner/create.operation.ts
@@ -82,6 +82,9 @@ export const description: INodeProperties[] = [
 				operation: ['create'],
 			},
 		},
+		typeOptions: {
+			minValue: 1,
+		},
 		default: 365,
 		description: 'Number of days before consent expires',
 		required: true,
diff --git a/packages/n8n-node/nodes/Probo/actions/cookieBanner/update.operation.ts b/packages/n8n-node/nodes/Probo/actions/cookieBanner/update.operation.ts
index 005f65b8e..ba2c1daa5 100644
--- a/packages/n8n-node/nodes/Probo/actions/cookieBanner/update.operation.ts
+++ b/packages/n8n-node/nodes/Probo/actions/cookieBanner/update.operation.ts
@@ -159,9 +159,7 @@ export async function execute(
 
 	const input: Record<string, unknown> = { cookieBannerId };
 	if (name) input.name = name;
-	if (privacyPolicyUrl !== undefined) {
-		input.privacyPolicyUrl = privacyPolicyUrl === '' ? null : privacyPolicyUrl;
-	}
+	if (privacyPolicyUrl) input.privacyPolicyUrl = privacyPolicyUrl;
 	if (cookiePolicyUrl) input.cookiePolicyUrl = cookiePolicyUrl;
 	if (consentExpiryDays) input.consentExpiryDays = consentExpiryDays;
 	if (consentMode) input.consentMode = consentMode;
diff --git a/packages/n8n-node/nodes/Probo/actions/cookieCategory/update.operation.ts b/packages/n8n-node/nodes/Probo/actions/cookieCategory/update.operation.ts
index e8d90e381..46d61d738 100644
--- a/packages/n8n-node/nodes/Probo/actions/cookieCategory/update.operation.ts
+++ b/packages/n8n-node/nodes/Probo/actions/cookieCategory/update.operation.ts
@@ -150,7 +150,10 @@ export async function execute(
 	if (slug) input.slug = slug;
 	if (categoryDescription) input.description = categoryDescription;
 	if (gcmConsentTypes) {
-		input.gcmConsentTypes = gcmConsentTypes.split(',').map((s) => s.trim());
+		input.gcmConsentTypes = gcmConsentTypes
+			.split(',')
+			.map((s) => s.trim())
+			.filter((s) => s.length > 0);
 	}
 	if (posthogConsent) input.posthogConsent = posthogConsent === 'true';
 
diff --git a/packages/n8n-node/nodes/Probo/actions/cookiePattern/update.operation.ts b/packages/n8n-node/nodes/Probo/actions/cookiePattern/update.operation.ts
index cb5928040..1a16ae458 100644
--- a/packages/n8n-node/nodes/Probo/actions/cookiePattern/update.operation.ts
+++ b/packages/n8n-node/nodes/Probo/actions/cookiePattern/update.operation.ts
@@ -54,7 +54,7 @@ export const description: INodeProperties[] = [
 			},
 		},
 		default: 0,
-		description: 'The maximum age of the cookie in seconds (0 to clear)',
+		description: 'The maximum age of the cookie in seconds (leave at 0 to keep unchanged)',
 	},
 	{
 		displayName: 'Excluded',
@@ -133,9 +133,7 @@ export async function execute(
 
 	const input: Record<string, unknown> = { cookiePatternId };
 	if (displayName) input.displayName = displayName;
-	if (maxAgeSeconds !== undefined) {
-		input.maxAgeSeconds = maxAgeSeconds === 0 ? null : maxAgeSeconds;
-	}
+	if (maxAgeSeconds > 0) input.maxAgeSeconds = maxAgeSeconds;
 	if (excluded) input.excluded = excluded === 'true';
 	if (patternDescription) input.description = patternDescription;