***
title: "GenerateMigration"
generated: true
---------------
Generates a new migration file based on any schema changes (e.g. adding or removing CustomFields).
See [TypeORM migration docs](https://typeorm.io/#/migrations) for more information about the
underlying migration mechanism.
```ts title="Signature"
function generateMigration(userConfig: Partial, options: MigrationOptions): Promise
```
Parameters
### userConfig
\VendureConfig>`} />
### options
\MigrationOptions`} />