# LedgerTime > Guides for timesheets, approvals, client-approved proofs, billing, and org setup. ## Docs - [Clients and projects](https://docs.ledgertime.io/admin/clients-and-projects.md): Set up the clients and projects consultants pick on timesheets. - [Invite team and set roles](https://docs.ledgertime.io/admin/invite-team.md): Add consultants and approvers, assign roles, and set managers. - [Approve or reject a timesheet](https://docs.ledgertime.io/approvers/approve-reject.md): Clear the Approval Inbox so approved hours can become WIP. - [Create an invoice from WIP](https://docs.ledgertime.io/billing/invoice-from-wip.md): Select approved work in Progress, create a draft invoice, then send and mark paid. - [Fill and submit a timesheet](https://docs.ledgertime.io/consultants/fill-and-submit.md): Enter weekly hours, save a draft, and submit for approval. - [Upload and review proof](https://docs.ledgertime.io/consultants/upload-proof.md): Attach a client-approved proof (C2C), let OCR fill hours, and review before submit. - [First login](https://docs.ledgertime.io/getting-started/first-login.md): Sign in and get oriented on your first day in LedgerTime. - [Roles at a glance](https://docs.ledgertime.io/getting-started/roles.md): Which LedgerTime screens each role can use. - [Welcome to LedgerTime](https://docs.ledgertime.io/index.md): Capture time, get approvals, attach client-approved proofs, and turn approved work into invoices. - [Integrations overview](https://docs.ledgertime.io/integrations/overview.md): Connect accounting and payroll tools after the core time loop works. - [Proofs and data retention](https://docs.ledgertime.io/security/proofs-and-retention.md): What LedgerTime stores for client-approved proofs and how long it is kept. ## Optional - [Open app](https://app.ledgertime.io)