This kind of error occurs when you are missing a mandatory filter while using a function. For example, if you are applying the GORILLA_INVENTORYHIST() function, which has three mandatory filters: ‘sellerId,’ ‘period,’ and ‘sku,’ and if you skip/miss any of them, the function will return an error.
![Missing mandatory xxxx argument or parameter is not a string 1 image 3 Gorilla ROI](https://gorillaroi.b-cdn.net/wp-content/uploads/image-3.png.webp)