# Alder > Alder (formerly Nivara) is an AI employee for enterprise accounts receivable. It finds out why each > invoice is late, learns how your team works, and clears what's holding it up: collections, stalled > approvals, customer AP portals, disputes, and cash application. Anything that reaches a customer > waits for the finance team's approval. > > Alder is based in San Francisco and is part of Y Combinator's Fall 2025 batch. ## Key facts - Name: Alder - Former name: Nivara (renamed September 2026; same company, same team) - Website: https://meetalder.com (formerly getnivara.com, which now redirects here) - What it is: an AI employee for enterprise accounts receivable - Founders: Tejas Agarwal (CEO) and Pankaj Mishra (CTO), both formerly engineers at Uber - Y Combinator: Fall 2025 batch (F25) - Headquarters: San Francisco, CA - Contact: founders@meetalder.com - X: @meetalder ## Pages - [Home](https://meetalder.com): What Alder does, why B2B invoices are actually late, integrations, deployment, and FAQ. - [Receivables](https://meetalder.com/receivables): AR automation for collections, approvals and AP portals, disputes and short-pays, and cash application. - [Collections](https://meetalder.com/collections): AI collections for B2B receivables: follow-up in the original thread, promise-to-pay tracking, escalation by your rules. - [AP portals & approvals](https://meetalder.com/ap-portals): Invoice submission into Coupa, Ariba, and custom portals; rejections fixed and resubmitted; follow-up with the approver who releases payment. - [Disputes & short-pays](https://meetalder.com/disputes): Deduction and short-pay research: PO, receipt, and contracted rate pulled, with a recommended decision for the analyst. - [Cash application](https://meetalder.com/cash-application): Payment matching against open invoices from bank files, emailed remittance advices, and PDF scans; clean matches posted to NetSuite, SAP, or QuickBooks; exceptions queued with the evidence. - [Wholesale distribution](https://meetalder.com/industries/wholesale-distribution): AR for distributors: deductions and short-pays researched against the PO, proof of delivery, and price; lump-sum, EDI 820, and buying-group payments matched; every account followed up. - [Manufacturing](https://meetalder.com/industries/manufacturing): AR for manufacturers: invoices submitted into Coupa, Ariba, and custom portals; PO and three-way-match rejections fixed and resubmitted; chargebacks researched. - [Construction subcontractors](https://meetalder.com/industries/construction-subcontractors): AR for specialty and trade subcontractors: pay applications followed through GC approval, lien waivers and missing documents tracked, retainage collected when due. - [IT services & MSPs](https://meetalder.com/industries/it-services-msps): AR for managed service providers: recurring, project, and time-and-materials invoices followed up; failed autopay caught; disputes over hours and seats researched. - [Book a demo](https://meetalder.com/demo): 30 minutes on your open balances; pick a time directly on the page. - [Security & deployment](https://meetalder.com/security): Read-only start, no model training, VPC deploy, audit trail, security documentation on request. - [Blog](https://meetalder.com/blog): Notes from the Alder team on accounts receivable. - [Introducing Alder](https://meetalder.com/blog/introducing-alder): What Alder is, why B2B invoices are late, and how the finance team stays in control. - [Ariba invoice submission](https://meetalder.com/blog/ariba-invoice-submission): The ways to submit invoices to SAP Ariba (PO flip, CSV, cXML, EDI), which account each needs, what routing and invoice statuses mean, and how to fix and resubmit rejected invoices. - [Short-pays and deductions](https://meetalder.com/blog/short-pays-and-deductions): How B2B sellers code, research, and resolve short payments and customer deductions, tell valid from invalid ones, and set write-off policy. - [Tracking promises to pay](https://meetalder.com/blog/track-promises-to-pay): What to record for each promise to pay, how to follow up on the promised date, how to handle partial and broken promises, and which metrics to track. - [Coupa invoice rejected](https://meetalder.com/blog/coupa-invoice-rejected): Why Coupa invoices get disputed, put on tolerance hold, or stuck in approval; what each status means; and how suppliers correct, credit, or resubmit them in the Coupa Supplier Portal. - [DSO calculator](https://meetalder.com/tools/dso-calculator): Free calculator for days sales outstanding, days beyond terms, and cash freed by reaching a target DSO. Runs in the browser. - [AR aging report](https://meetalder.com/tools/ar-aging-report): Free accounts receivable aging report generator. Paste or upload open invoices (QuickBooks, NetSuite, or a spreadsheet) and get balances by customer in current, 1–30, 31–60, 61–90, and 90+ day buckets. Runs in the browser. - [Remittance advice template](https://meetalder.com/tools/remittance-advice-template): Free remittance advice generator (invoices covered, deductions with reasons, total paid) with PDF download, plus what a remittance advice is and what it should include. - [Payment reminder & collections email templates](https://meetalder.com/tools/past-due-invoice-email-templates): Seven payment reminder and collections emails for B2B collections, from a friendly reminder to a final notice, including a missing PO number, a new AP contact, a short payment, and a missed promise to pay. - [Nivara is now Alder](https://meetalder.com/nivara): The rename from Nivara to Alder, and what did and did not change. ## What Alder does - Collections: works the aging ledger account by account, tracks every promise to pay, and follows up in the original email thread. - Approvals and customer AP portals: submits into Coupa, Ariba, and custom portals, fixes rejections, and chases the person who actually releases payment. - Disputes and short-pays: pulls the PO, receipt, and rate, then hands an analyst a decision with the supporting evidence. - Cash application: matches incoming payments to open invoices across bank files, emailed remittance advices, and PDF scans. ## How it is different - It works on the cause of a late invoice (a stalled approval, a portal rejection, a missing PO number, an AP contact who left), not on a reminder schedule. - A person stays in control: the finance team sets tone, escalation, and approval rules, and approves anything customer-facing. - "Learns" means account context (rules, tone, escalation paths, each customer's contacts, portals, and payment habits). Customer data is never used to train models. ## Integrations - Email and chat: Gmail, Outlook, Microsoft Teams, Slack - ERP and accounting: NetSuite, SAP, Oracle, Microsoft Dynamics 365, Epicor (Prophet 21, Eclipse), Acumatica, Sage (Intacct, 300 CRE), Viewpoint Vista, Foundation, QuickBooks, Xero - Customer AP and payment portals: Coupa, SAP Ariba, Jaggaer, Textura, Procore Pay, GCPay, Siteline - PSA: ConnectWise PSA, Autotask, HaloPSA - Billing, banking and payments: Stripe, Sequence, Brex, Mercury, Chase, Plaid ## Security - Every deployment starts read-only. - Deploys inside the customer's VPC or cloud account when required. - Every agent action is logged, attributable, and reversible. ## Company - Contact: founders@meetalder.com - [Y Combinator profile](https://www.ycombinator.com/companies/alder) - [G2](https://www.g2.com/products/alder/reviews) - [LinkedIn](https://www.linkedin.com/company/nivara-hq/) - [X](https://x.com/meetalder) - [Privacy policy](https://meetalder.com/privacy) - [Terms of service](https://meetalder.com/terms) Nivara and getnivara.com are former names of Alder. meetalder.com is the canonical site. Alder is not affiliated with other businesses that use the Nivara name.