Core return credit checks, with each return read against the sale and the supplier's policy before credit goes out.

A core comes back with whatever paper the customer kept: a return tag, the old ticket, a number written on the box, sometimes nothing. Your counter hunts down the sale, someone checks that it is the right core and that it came back in time, the old part goes on the shelf for the supplier, and accounting credits the customer. The supplier decides later whether you get your own core charge back.

For the test, AI reads copies of those records and produces a check sheet for each return: the invoice number, the part and core numbers as each document wrote them, the ship date and return date, the policy's condition and time-limit terms with the clause quoted, and every place the paper disagrees. It issues nothing and rules on nothing. Your reviewer sets each sheet beside what your counter and accounting actually did.

The clock starts and stops in different places. One supplier's core policy for remanufactured components takes a core back for 90 days, adds a handling fee after day 45 and gives no credit after day 90, and it tells customers that a tracked shipment is the record of the return date. A second supplier's core return guidelines count 60 days from the invoice date and want the core received by then, so the day you ship it doesn't settle it. Your own terms to the customer may run on yet another calendar. Each check sheet shows the invoice, ship and received dates as written and names the count each policy uses.

The number that decides is often not the number on the part. That second supplier only takes cores in the same group or core code classification as the exchange unit ordered, which it lists in a core acceptance catalog, and its packing list can identify a core by code or group, by part number, or by invoice or order number. The first asks for like-for-like or style-for-style returns. A core that fit the truck can still be the wrong core on paper. The sheet carries the part number from the invoice, the core number from the tag and the group from the policy, each as written, and treats no two numbers as the same part on its own.

Missing paper can move the credit. Without an invoice or order number on the packing slip, the second supplier applies credit to the oldest outstanding invoice with the matching exchange unit, which may not be the sale you're crediting. It pays only for cores owed, won't bank extras, and gives you 10 days to answer a discrepancy notice. The first says no packing slip in the box means no refund, and has every return started online by order number and email. A public customer may add a rule of its own: Ocean County, New Jersey's parts scope for vehicles under 15,000 GVWR has core charges shown on every quote and purchase order, credit issued once the core is back, and a written explanation when one is turned down. The sheet names each missing document and quotes what that party's terms say happens next.

Condition terms are written for an inspector. Both suppliers refuse cores hurt by non-operational causes such as rough handling, fire, bad removal or poor storage. The first accepts weather rust on exterior surfaces, only light flash rust on interior surfaces and machined areas, and no assembly built from mismatched parts, and it wants fluids drained and the new unit's plugs and caps fitted to the core. The second wants cores in off-engine condition, complete and never taken apart since removal, won't take electronic injectors with broken stator terminals unless its catalog says so, and turns down broken nozzle tips on certain injector series. Warranty returns are different paper again: one maker's guide for reman air dryers, calipers, compressors and water pumps denies a return at the counter when its date code is missing, unreadable or altered, and that code can be month and year or day of the year and year. The sheet quotes those terms beside what your counter wrote down, and a person decides.

Tax can follow the core, and your reviewer will check for it. A Kansas opinion letter from 2000 treats the core charge as part of the taxable selling price and tells the retailer to refund the charge and the tax on it when the part is turned in. Colorado's August 2017 general information letter, which by its terms doesn't bind the department, treats the charge as part of the purchase price, says it isn't a security deposit, and finds a refund of tax inappropriate. Michigan excludes core credits from sales price from January 1, 2017 where the charge is a recycling, deposit or disposal fee stated separately on the invoice. So the sheet shows tax on the core line and tax on the credit and leaves the answer to accounting. Nothing here is legal or tax advice. Your reviewer checks that the right sale was found, that every mismatch is real, that a core credited once isn't credited twice, and that any return the sheet couldn't tie down was held.

With your reviewer's yes, new core returns get the same check sheet for about 30 days.

A person at your counter or in accounting reads every sheet and resolves each mismatch before any credit reaches a customer. Credits post the way they do today.

Any further job is a separate decision at a separate price.