Representation of resources in an operation plan in Build vs. a bill of materials in SAP Business One

Let us use Netronic Manufacturing to support the production of metal plates (Item code: PL00012, Item name: Plate A) that are cut from sheets of metal (Item code: MS00012, Item name: Metal sheet). The production is the responsibility of a senior technician (Resource code: R300006, Resource name: Senior Technician) who operates the cutting machine (Resource code: R300012, Resource name: Cutting machine).

The senior technician is represented with a default setup in SAP Business One:

• Unit of Measure Text = min;
• Time per Resource Units = <0:01:00>;
• Res. Units per Time Period = 1.

The cutting machine has four heads, and works in 2-minute cycles. With its four heads, it can produce 4 packs of plates in each cycle. Thus, its resource master data in SAP Business One are as follows:

• Unit of Measure Text = cycle;
• Time per Resource Units = <0:02:00>;
• Res. Units per Time Period = 4.

For the cutting machine, the time to process one item can be calculated as

Time per Resource Units / Res. Units per Time Period = <0:02:00>/4 = <0:00:30>

In Build, the manufacturing of the plates is represented by the operation plan shown below.

The above operation plan translates into the following bill of materials in SAP Business One:

The bill of materials has automatically been created for 4 plates (Quantity = 4 on the top row), since Res. Units per Time Period is 4 in the resource master data form of the cutting machine – meaning that the machine produces 4 plates in 1 cycle.

An operation plan in Build is mapped onto a bill of materials in SAP Business One, and vice versa. Setup time and Job time in an operation plan are represented by Additional Quantity and Quantity in the bill of materials, respectively. Thus, the synchronization flow can be described by the following table:

Accordingly, we can see Quantity = 1 (along with UoM Name = cycle) on the row of the cutting machine. Time per Resource Units for this resource was set to <0:02:00> in the resource master data form, thus a cycle lasts for 2 minutes. During these 2 minutes, the machine produces 4 items, thus the time required for one item is 2/4 = 0.5 minutes – which is exactly the Job time value that we have in the operation plan in Build.

The Additional Quantity column in the bill of materials for the cutting machine contains 0.5 cycles. In terms of time, this translates into 1 minute. In the operation plan, the Setup time of this resource is 15 seconds, which, for 4 plates yields 4*15 sec = 60 sec = 1 minute, i.e. the equivalent of the value shown in the bill of materials.

The values for the senior technician are easier to interpret since that resource has default settings in SAP Business One. Quantity for the senior technician is 2 (UoM Name = min) in the bill of materials, which is equal to the value found in the operation plan. Likewise, Additional Quantity is 0.5 min, i.e. exactly the same as the corresponding Job time in the operation plan.

For the case of default resource master data settings in SAP Business One, see Synchronization of an operation plan in Build with a bill of materials in SAP Business One.