# Tag a transaction **POST /financial-data/transaction/{transactionId}/tags** Adds tags to a transaction by name or id; names that do not exist yet are created as case tags. The transaction must belong to the case. Returns the full transaction row after the change; on a case shared with opposing counsel, attachedTags leave out tags the other side added by hand. ## Servers - http://api.example.com: http://api.example.com () ## Authentication methods - Access token ## Parameters ### Path parameters - **transactionId** (string) Transaction ID ### Body: application/json (object) - **caseId** (string) Case ID this transaction belongs to. - **tagNames** (array[string]) Array of tag names or tag IDs to add. ## Responses ### 201 #### Body: application/json (object) - **data** (object) - **statusCode** (number) - **timestamp** (string(date-time)) [Powered by Bump.sh](https://bump.sh)