Custom software for reconciling subcontractor work

What the invoice reviewer needs to know

Suppose a subcontractor was hired to prepare project documentation. Their work log includes that documentation and an additional summary requested later. The project manager approved completion of the original scope. The extra task is still disputed: the team has not settled whether it was covered by the original agreement or should have been a separate assignment. The subcontractor includes both tasks in one invoice line.

The person reviewing the invoice needs to know which work the manager approved. They need the approval for the documentation and a clear indication that the additional summary remains unresolved. A submitted work log records what the subcontractor says they did. It does not extend the manager's approval to the extra task.

A useful application would show that invoice line alongside both tasks. The reviewer could open the approval for the documentation and see exactly what it covered. For the extra summary, they could see why it remains disputed and who is responsible for resolving it under company rules. That would spare the reviewer another search through email. The people responsible for the subcontractor relationship would still decide how to resolve the disagreement.

This makes the connection between work, assignment, and agreed scope more important than importing hours alone. A subcontractor may handle several assignments for the same customer. A company name and invoice month will not reliably distinguish them. If staff currently use a spreadsheet to work out which assignment a log entry belongs to, the application needs to help them resolve that missing information. Automatically matching similar descriptions could conceal a mistake.

Check what your existing software can do

A time tracker and a project management system may cover different parts of this work. Before commissioning an application, ask your administrator or vendor to walk through the example in your current tool. Can it distinguish submitted work from approved work? Can the reviewer see which work an invoice line covers?

Some standard products support this process. Microsoft's documentation for Dynamics 365 Project Operations describes subcontractor time, expense, and material records, work approval, and matching recorded project costs to vendor invoices. That gives you a concrete example to discuss with your own vendor when checking available features (Project Operations subcontract management).

One detail matters: in the documented Project Operations feature, an invoice line must reference a subcontract line before recorded costs can be linked to it. Without that reference, users can track verification status but cannot make the link. A field saying that an invoice has been checked may therefore provide less information than a reviewer needs to trace the underlying approval (Microsoft's invoice verification documentation).

Confirm availability for your particular deployment. Microsoft also identifies limits on fixed-price subcontract support in some Project Operations scenarios. If your firm uses fixed-price assignments, have the vendor demonstrate that case.

Choosing the size of the change

Configuration may be enough when the current product can store the necessary links and approvals but the team does not use those features. The work might involve cleaning up assignment records and agreeing where managers record their approval. Allow time for staff to change their habits. Another application will have limited value if approvals continue to live only in a manager's inbox.

A focused extension makes sense when work tracking is useful but reviewers lack a way to compare it with invoices. The extension could bring in entries and approvals from the current system, display them beside the invoice, and record how staff resolve discrepancies. Before choosing this approach, establish whether the vendor provides access to the necessary information, including later corrections. A connection that transfers only total hours cannot show that approval covered just the original scope.

Custom software is worth considering when assignments have different rules for describing and approving work, and staff repeatedly reconstruct those relationships outside the system. The application could handle subcontractor reconciliation and connect to your existing accounting software. Replacing every tool does not have to be part of the project. Include a standard project or ERP module in the comparison if it can handle your work without extensive workarounds.

None of these options automatically calls for AI. A model might help find matching work descriptions, but text similarity cannot establish approval. Start with the missing connections between the assignment, completed work, and invoice.

Plan for the work after launch

Return to the extra summary in the example. Once the company resolves the disagreement, the responsible person records the decision. The application should preserve the earlier record and explain why the case changed. Similarly, a corrected work entry needs to refer back to the original so a reviewer does not mistake it for additional work. The next person handling the invoice can then follow what happened without asking the spreadsheet's author to explain their notes.

If subcontractors will clarify their own entries, they need access to their assignments and the questions about their work. Agree on that access separately from the employee view used to compare invoices across suppliers. Our article on custom service request software for partner networks explores the broader question of working with outside firms.

When comparing costs, include maintaining connections to existing tools and helping staff when information needed for reconciliation fails to arrive. Someone in your company must own the rules for approving work as those rules change. The software provider needs an agreed support scope and a way to receive change requests. Those responsibilities continue after development ends.

Before moving records, decide how staff will handle open discrepancies and where they will find closed cases. An export should let them reconstruct the links between work, approval, and invoice. For a custom application, also discuss code ownership, usage rights, and what another provider would need to take over maintenance. Those arrangements affect your ability to switch providers, just as data export does with SaaS.

Start with one invoice that took extra work

Syntalith builds custom applications. A possible project here is a screen that connects work logs, approvals, and an invoice, with space to explain discrepancies. It could start with one type of assignment so your staff can assess whether they can follow a case without a separate spreadsheet. The choice between an extension and a standalone application depends on what your current system makes available.

For an initial conversation, describe the last invoice that sent someone searching for an approval and who helped find it. Name the tool you use and explain what your team adds to the spreadsheet. You do not need a complete specification or confidential documents to start. See the pricing page for information about how Syntalith work is billed.