Magento 2.3.3 This is an invalid subscription ID

[TIMMY9]

Hello 

We just visited a product listing  page via google for our website and it displayed the following notification after the page loaded.

Upon going back and visiting the page again it had disappeared.

[Rahul Gupta]

@TIMMY9 not able to see the screenshot as it will be visible once approved by moderator.

So in the mean time please share some links of screenshot.

Thanks

[TIMMY9]

This just states in red writing of magento default styling:

“This is an Invalid subscription ID.”

Positioned just below a block header on the page

[Tarandeep Singh · Accepted solution]

@TIMMY9  If this was one time off issue, recommendation is to just ignore it. Seems like you did something around newsletter followed by google and land on your website.

Newsletter related values was still in the cache caused this issue. You can see the below file which generate the same error message.

https://github.com/magento/magento2/blob/2.4-develop/app/code/Magento/Newsletter/Controller/Subscrib...

[Rahul Gupta]

@TIMMY9 You might have create a plugin or have done some work around Subscription.

So as @Tarandeep Singh suggests if it is first time then you can ignore it and if not then just disable the module in which you have work for subscription and check if it solved.

Thanks

[TIMMY9]

@Tarandeep Singh Thanks and @Rahul Gupta for confirming.

Yes we have a newsletter subscription box which we are changing so that after email is entered it will take to another page with prefilled email address so we can have additional captcha to prevent spam email signups.

We will check further the files you have sent