> ## Documentation Index > Fetch the complete documentation index at: https://docs.synci.io/llms.txt > Use this file to discover all available pages before exploring further. # Update investment settings > Everything on the `investment` object: cash tracking and the paying bank account. ## OpenAPI ````yaml /openapi/v1.json put /finance/accounts/{accountId}/investment openapi: 3.2.0 info: title: Synci version: '1.0' description: >- Synci is a platform for integrating financial accounts with your favorite apps. servers: - url: https://api.synci.io/api/v1 security: - oauth2: [] - http: [] tags: - name: Finance kind: nav - name: Connections parent: Finance - name: Accounts parent: Finance - name: Transactions parent: Finance - name: Institutions parent: Finance - name: Destinations kind: nav - name: YNAB parent: Destinations - name: Lunch Money parent: Destinations - name: Google Sheets parent: Destinations - name: SimpleFIN parent: Destinations - name: Notion parent: Destinations - name: Account kind: nav - name: Webhooks parent: Account - name: User parent: Account - name: rule-engine summary: Rules kind: nav - name: Rules parent: rule-engine - name: Rule Logs parent: rule-engine - name: Transfers kind: nav - name: Transfer Links parent: Transfers - name: Transfer Logs parent: Transfers paths: /finance/accounts/{accountId}/investment: put: tags: - Investments summary: Update investment settings description: >- Everything on the `investment` object: cash tracking and the paying bank account. operationId: financial.accounts.investment.update parameters: - name: accountId in: path required: true description: The financial account ID schema: type: integer requestBody: content: application/json: schema: $ref: '#/components/schemas/UpdateManualInvestmentTermsRequest' responses: '200': description: '' content: application/json: schema: type: object properties: message: type: string const: Investment settings updated. data: $ref: '#/components/schemas/ManualInvestmentTermsResource' required: - message - data '401': $ref: '#/components/responses/AuthenticationException' '403': $ref: '#/components/responses/AuthorizationException' '404': $ref: '#/components/responses/ModelNotFoundException' '422': $ref: '#/components/responses/ValidationException' components: schemas: UpdateManualInvestmentTermsRequest: type: object properties: cash_tracking_enabled: type: boolean description: >- Turning cash tracking on starts the cash balance at zero today unless the account already had one. paying_financial_account_id: type: - integer - 'null' description: >- A bank account of the owner whose counterparty-linked rows post deposits and withdrawals; null stops that. title: UpdateManualInvestmentTermsRequest ManualInvestmentTermsResource: type: object properties: base_currency: type: - string - 'null' description: The currency every position is valued in. The account currency. cash_tracking_enabled: type: boolean description: >- Whether deposits, withdrawals and the cash legs of trades are tracked as a cash balance. paying_financial_account_id: type: - string - 'null' description: >- The bank account whose counterparty-linked rows post deposits and withdrawals, or null. Also null for an app the user did not share that account with. positions_count: type: integer minimum: 0 cash_anchor: type: - object - 'null' description: >- The cash balance the user last stated and the day it was true (end of day): rows dated on or before it are already in it. Null when cash is not tracked. properties: balance: type: number date: type: string required: - balance - date last_priced_at: type: - string - 'null' format: date-time description: When the account was last valued. last_valued_on: type: - string - 'null' description: >- The last day whose value was computed completely (every held position priced and converted). Earlier than today while a close or an exchange rate is missing; the figures on `total_balance` are from this day. history_rebuild: type: - object - 'null' description: >- The background rebuild of the value history (a position opened in the past, a backdated trade). Null when none was ever queued. `status` QUEUED, RUNNING, COMPLETED or FAILED; `from` the first day being rebuilt. A FAILED rebuild is retried with the rebuild-history endpoint. properties: status: type: string enum: - QUEUED - RUNNING - COMPLETED - FAILED from: type: - string - 'null' failed_at: type: - string - 'null' format: date-time required: - status - from - failed_at stale_positions: type: array description: >- Names of positions whose security has had no close for more than five trading days; their value is carried forward. items: type: string required: - base_currency - cash_tracking_enabled - paying_financial_account_id - positions_count - cash_anchor - last_priced_at - last_valued_on - history_rebuild - stale_positions title: ManualInvestmentTermsResource responses: AuthenticationException: description: Unauthenticated content: application/json: schema: type: object properties: message: type: string description: Error overview. required: - message AuthorizationException: description: Authorization error content: application/json: schema: type: object properties: message: type: string description: Error overview. required: - message ModelNotFoundException: description: Not found content: application/json: schema: type: object properties: message: type: string description: Error overview. required: - message ValidationException: description: Validation error content: application/json: schema: type: object properties: message: type: string description: Errors overview. errors: type: object description: A detailed description of each field that failed validation. additionalProperties: type: array items: type: string required: - message - errors securitySchemes: oauth2: type: oauth2 flows: authorizationCode: authorizationUrl: https://api.synci.io/oauth/authorize tokenUrl: https://api.synci.io/oauth/token scopes: profile:read: View your name, email, and profile details accounts:read: View your connected financial accounts and balances accounts:write: >- Update, sync, and remove your financial accounts, and change their settings transactions:read: View your transactions transactions:write: Create, update, and delete your transactions sensitive:read: >- See sensitive identifiers like account numbers and account holder names transfer-links:read: View your transfer links and their transfer history transfer-links:write: Create, update, and delete transfer links, and undo transfers rules:read: View your rules and rule activity rules:write: Create, update, and delete rules, and undo rule actions webhooks:read: View your webhook endpoints webhooks:write: >- Create, update, and delete webhook endpoints, and rotate their secrets destinations:read: View your connected destinations destinations:write: Connect, update, and remove destinations financial-connections:read: View your connected institutions financial-connections:write: Manage your connected institutions http: type: http description: Bearer token (personal access token or OAuth access token) scheme: bearer ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.