Wordpress - more than one category

Hi, I have problem to add more than one category in wordpress.
After I create content post, I want to add it to two or more categories.

I see post similar to my problem but solution dont work: Wordpress - Add more than one category

I do it as on example:

And have error

The operation failed with an error. Failed to map ‘categories’: Function ‘add’ finished with error! 'emptyarray ’ is not a valid array.

Please help

Welcome to the Make community!

You need to type in emptyarray like this: {{emptyarray}}, so that it looks like this,

Or select it from the variables list on the right:

Wow, very fast replay. Works thank you very much.

No problem, glad I could help!

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