Test a lien deadline API with one invoice and two states before you build anything

If you're deciding whether a lien deadline API is worth wiring into your credit or closeout process, there's a quick test that tells you more than a feature list.

Take one real invoice. Send it twice to the calculation endpoint with the same invoice date, project type and role, once for California and once for Texas. Then look at what comes back.

• Does it return both a notice date and a lien date? You want the preliminary notice deadline and the lien deadline as separate fields, plus a flag that says whether notice is required at all for that scenario.
• Are the day counts usable? A positive number means time left. A negative one means the date has passed, and your queue should treat that as an escalation, not a reminder.
• Do the two states actually differ? If Texas comes back with an earlier notice window than California, your current reminder cadence may be built around the wrong state.

If the results line up with jobs your team already knows, you've got a reason to plan a small pilot. If they don't, you've learned that before writing integration code.

LienDeadline's help center has a walkthrough of a first calculate-deadline call that explains each output field and what operations should do with it.

From the LienDeadline team. General information, not legal advice; have a qualified reviewer check the facts on any live job.