Allow null in multichannel campaign. (#41180)

plugins/woocommerce-admin/client/marketing/data-multichannel/types.ts

@@ -58,7 +58,7 @@ export type Campaign = {
 	cost: {
 		value: string;
 		currency: string;
-	};
+	} | null;
 };
 
 export type CampaignsPage = {

plugins/woocommerce-admin/client/marketing/hooks/useCampaigns.ts

@@ -46,11 +46,15 @@ export const useCampaigns = ( page = 1, perPage = 5 ): UseCampaignsType => {
 					( el ) => el.slug === campaign.channel
 				);
 
+				const cost = campaign.cost
+					? `${ campaign.cost.currency } ${ campaign.cost.value }`
+					: '';
+
 				return {
 					id: `${ campaign.channel }|${ campaign.id }`,
 					title: campaign.title,
 					description: '',
-					cost: `${ campaign.cost.currency } ${ campaign.cost.value }`,
+					cost,
 					manageUrl: campaign.manage_url,
 					icon: channel?.icon || '',
 					channelName: channel?.title || '',

plugins/woocommerce/changelog/fix-null-allowed-in-multichannel-campaign

@@ -0,0 +1,4 @@
+Significance: patch
+Type: fix
+
+Allow null value in cost field for multichannel campaign.