LineSight vs SAP PP/DS: Who Builds the Slitting Plan in an SAP Shop?

What PP/DS does well

PP/DS lives in the same system as the orders, the materials and the finance. For a large group that has already put its plants on S/4HANA, that is worth a great deal: one data model, one set of master data, no second database to keep in step, and planning results that never have to be re-keyed.

Its optimizer is built for sequencing. SAP's training material describes an objective that is "the sum of differently weighted times and costs", and walks a planner through trading delay costs against setup times to find a better order of operations on a resource. That is a real and hard problem, and SAP has worked on it for a long time.

The mill products extensions go further toward metal. Campaign planning (SAPinsider notes that in steel and paper, resources are often planned in campaigns), block planning and multiple output planning all fit the way mills and large processors group work. And there is a trim optimizer interface, which reflects that cutting optimization has usually come from a specialist product.

Where trim optimization lives in an SAP landscape

The interface exists because the trim optimizer usually comes from someone else. SAPinsider's description of the APO mill extensions said so directly, and today the SAP Store lists T.CON TRIM SUITE, a partner product, for reducing trim loss and waste.

T.CON describes TRIM SUITE as "the ideal solution for reel or sheet processing companies that want to optimize their cutting processes." It supports trim sheet orders in PP/DS and PP and SAP's standard combination orders, and version 4.0 is certified for integration with RISE with SAP S/4HANA Cloud. That is a tight fit with SAP.

What we could not find is a steel slitting case study for it. T.CON's published framing is reel and sheet processing. That does not mean it cannot be set up for coil. It means we found no one saying they had, so a metals buyer should ask.

How LineSight works differently

LineSight starts from the coil rather than the resource. It reads open orders and inventory from the ERP in real time, then evaluates far more order-to-coil combinations than a planner can, across the whole order book and inventory at once, to find setups where widths nest together with the least trim loss.

The rules are the ones a slitting floor actually runs on: grades, gauges, slit widths, ID/OD, PIW, edge conditioning, knife setups, multi-pass, coil weights, min and max mults, width tolerances, line speeds, lead times and must-ship orders. Every plan shows what is cut from which coil and why. A person approves it before anything goes to the ERP or the floor, and when a planner overrides a width or a pattern, later plans respect it.

LineSight is publicly live with PS Data, INVEX and Enmark. SAP is not on that list. LineSight says it works with any ERP and that each customer gets a dedicated integration built during onboarding, so for an SAP shop the connection would be one of those builds, and worth scoping early.

Three planning questions and which tool answers each

Which order runs first on the slitter this shift

Sequencing work on a resource to cut setups and late orders is PP/DS's home ground. If this is your bottleneck and you are on S/4HANA, start there.

Six orders of 16 gauge galvanized and three master coils

Which coil feeds which orders, and in what slit pattern, is a search problem with millions of candidate answers. In an SAP landscape that search goes to a trim optimizer. LineSight runs that kind of search for coil, built around coil rules rather than reel and sheet rules. Our post on why an ERP can't plan a slitting line walks through the difference between a record and a search.

A steel campaign on a rolling mill

Campaign and block planning belong to SAP's mill extensions. LineSight plans service center and processor work, not mill campaigns.

Pricing

For context on what trim is worth, the scrap calculator shows one point of scrap at 50,000 tons a year and $1,000 a ton is $500,000 a year.

Can you use both?

Yes, and for an SAP shop with slitting lines it is the likely shape. SAP stays the system of record and keeps sequencing the plant. LineSight decides what gets cut from which coil and, once the integration is built, writes the result back so the record stays complete. The work is in the integration, which would be built during onboarding rather than switched on, and in agreeing which system owns the slitter's sequence.

If you are weighing a standalone optimizer against an SAP-certified add-on, our CoilTrim vs SAP PP/DS page covers that choice.

The bottom line

PP/DS is a scheduler inside the ERP, and a good one for the plants it was designed for. The cutting decision on a coil line sits outside it by design. LineSight fills that gap for metal: the coil choice, the knife pattern and the trim, with a planner signing off. Elite Steel cut its scrap rate 2.9 points and added about $850K in annualized revenue with it. That is one operation and one product mix, so run your own orders through it before you trust anyone's number.