Wiring Your Banks, ERP, and Cards Into One Actual System

Before connecting anything, map out where a person is currently moving data by hand between systems: downloading a bank statement to reconcile in the ERP, exporting card transactions into a spreadsheet before uploading them somewhere else, or re-keying vendor payment confirmations. This map is your actual priority list, since the value of any integration comes from removing a specific piece of manual work, not from the abstract idea of being more connected.

A direct or aggregator-based feed from your bank into your ERP's cash reconciliation is usually the highest-value connection to build first, since bank reconciliation is one of the most universally manual, recurring tasks in any finance team's month. Once transactions flow in automatically, reconciliation becomes a matching and exception-review exercise instead of a data entry one, which changes both the time it takes and how often small errors slip through.

Corporate card platforms, whether for travel, purchasing, or virtual single-use cards, generally offer a feed of transaction and receipt data that can push directly into your ERP's expense coding, rather than waiting for a month-end export someone has to categorize by hand. Setting the category and approval rules at the card platform level, so data arrives already coded, removes a step rather than just moving where the manual categorization happens.

Connections most commonly fail not at initial setup but when something changes on either side: a bank changes its file format, an ERP upgrade changes a field mapping, or a new account gets added without updating the integration's configuration to include it. Build a habit of periodically spot-checking that every account and every connection is still flowing correctly, rather than assuming a system that worked at launch will keep working indefinitely without anyone checking.

For example, suppose a bank changes its export file format and nobody is told. The feed keeps running, but transactions from one account stop matching in the ERP, and the gap only surfaces when reconciliation is off at month end. A simple monthly check would have caught it: compare the count of bank transactions for each account against what arrived in the ERP, and confirm that every account added since setup appears in the integration's configuration. Assign that check to a named owner and log the result, so a silent drop becomes a routine exception instead of an audit surprise.

Tackle one connection at a time, starting with whichever manual process is consuming the most staff hours, and let each one stabilize before adding the next. A treasury tech stack rebuilt all at once, with every connection changing simultaneously, makes it much harder to isolate which specific piece broke when something inevitably needs adjustment during the transition.

A workable order of operations:

1. Map every place a person moves data by hand between bank portals, the ERP, card platforms and spreadsheets.
2. Rank those gaps by staff hours consumed, and start with the process that uses the most.
3. Connect the bank feed to your ERP's cash reconciliation first, so matching and exception review replace data entry.
4. Push card transactions and receipts into ERP expense coding, with category and approval rules set at the card platform.
5. Let each connection stabilize before adding the next, and spot-check that every account is still flowing after any change.
6. Keep a simple map of what feeds what, who owns each connection, and which system is the source of truth.

Once you have more than two or three integrations running, keep a simple, current diagram or list of what feeds what, which system is the source of truth for a given piece of data, and who owns each connection internally. This sounds like unnecessary documentation right up until someone new joins the team, a connection breaks, or an auditor asks how a specific number actually flows from the bank into the financial statements, at which point having the map already written down saves real time.

Update that map whenever a connection changes, not on a separate schedule that inevitably falls behind. Tying the update to the change itself, rather than to a periodic review that competes with everything else on someone's plate, is the only version of this habit that actually survives past the first few months.