I am using the SendInBlue plugin (now renamed to Brevo) to track the events of my customers.
However, I notice that at some points the events of the customers, like cart_updated or order_completed, are not registered in SendInBlue.
The plugin then shows this error in the nopCommerce log:
System.Net.Http.HttpRequestException: Response status code does not indicate success: 400 (Bad Request).
at System.Net.Http.HttpResponseMessage.EnsureSuccessStatusCode()
at Nop.Plugin.Misc.Sendinblue.Services.MarketingAutomationHttpClient.RequestAsync[TRequest](TRequest request)
at Nop.Plugin.Misc.Sendinblue.Services.MarketingAutomationManager.HandleShoppingCartChangedEventAsync(ShoppingCartItem cartItem)
It is not with all customers, but only sometimes. Any idea what is causing this and if it can be resolved?