A domain contains information about the language of the documents, and the fields which the system would extract from the documents. Community Edition supports five domains out-of-the-box such as: Invoices, Purchase orders, Utility Bills, Bank Statements, and Credit Memos. For any other document type, create a custom domain.

1. Begin by creating a learning instance, and then select the Document type > Other option to add a custom domain.
2. Add the Domain name and Primary language of documents.
3. Upload your sample documents to train.
4. In the Instance fields, enter the name of the label as it appears in the training documents and then choose to Add as form or Add as table/repeated section that require extraction.
   Use the same form and table/repeated section field names as it appears in the training documents. Otherwise, the documents will remain unclassified.