# Line items - Table extraction Typless defines line items as the connection of **at least 3** [extraction fields](https://typless.gitbook.io/typlessapi/typless/extraction-fields) that together represent a piece of information.\ The definition covers all table and line item extraction from documents. Line items can be repeated between 1 and N times on the document. ## Examples ### Line item on an invoice ![Single line item](https://files.readme.io/1046dc6-line_item.jpg) ### Line item in the general table ![Multiple line items](https://files.readme.io/4febf78-typless_3.PNG) ### Non-standard table {% hint style="info" %} **📘 ****Fields for a single line item do not have to be in the same line** As long as the line item fields are logically connected, Typless will find a way to extract them. {% endhint %} ![Unstandardized line item structure](https://files.readme.io/52fb50b-tyoless_3.PNG) When defining line items, define all the needed fields that occur on your documents.\ **If the field is missing, the system will return null as the result.** ### Multiline field {% hint style="warning" %} **🚧 Line item will only return the first line of a multiline field** If a field on the supplier document has the value written in multiple lines, typless will only return the first line of the multiline field. {% endhint %}