Every ERP, CRM or HR upgrade touches processes that run across several systems. We test those processes end to end, with realistic data and environments, through vendor releases and user acceptance.
Vendor releases arrive on a date someone else chose. Your ERP carries years of configuration, a few extensions nobody documented, and integrations to the CRM, the warehouse and the bank. The vendor tested its product. Nobody has tested your version of it, connected to everything else you run and loaded with your data. That gap is how an upgrade weekend becomes a quarter-end incident.
Rely on the vendor’s release testing and on the implementation partner’s tests of what it configured. It’s a sensible default, and for a lightly customized system it is often enough.
Test the processes your business runs, from first step to last, across every system they touch, with data that looks like yours and the people who do the work.
| Process | Systems it crosses | Common failures |
|---|---|---|
| Order to cash | CRM, ERP, billing, payments | Pricing, tax, credit holds, invoice numbering |
| Procure to pay | ERP, supplier portal, bank files | Approval limits, three-way match, payment formats |
| Hire to retire | HR, payroll, identity, finance | Effective dates, retroactive pay, leaver access |
| Record to report | ERP, consolidation, reporting | Period close, currency rounding, intercompany balances |
| Customer service | CRM, ticketing, ERP | Entitlements, returns, case ownership |
In most enterprise test plans, running the tests is the short part. The long part is an environment where every system is on the right version, connected to the right partner endpoints, and loaded with data that exercises the real rules: the customer on credit hold, the supplier paid in two currencies, the employee who changed departments mid-month. Sandboxes drift from production after every refresh, and nobody notices until a test fails for the wrong reason.
So data and environments are planned as deliverables. Test data is built to cover the cases each process needs, from masked extracts or from scratch. Versions and connections are checked before each test cycle, so a failure means a process broke rather than the setup. It’s unglamorous work and it takes much of the schedule, which is why we estimate it openly instead of hiding it inside test execution.
Some of this work recurs on the vendor’s calendar, and some arrives once as part of a larger program. These are four different engagements, though they often follow one another.
Because the partner tests what it built, against the design it wrote. That testing is useful and you should keep it. What’s usually missing is someone testing the end-to-end processes across systems the partner never touched, starting from how the business works rather than from the design document. The two work well together when the boundary between them is written down.
Describe the problem in a paragraph and we will tell you which service applies.
