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George Moroses

Infor LX & BPCS Manufacturing Tip of the Week: Backward Scheduling

Operations are automatically backward scheduled at shop order release time. The backward scheduling algorithm starts with the shop order due date and schedules each operation based upon the standard move and queue times in the routings and the number of days the job is expected to run at standard. The system calculates and stores the operation scheduled start date. The dates may be modified by the shop order maintenance program. The number of days that a job is expected to run an operation is dependent upon the available capacity for that work center and the total hours scheduled for that operation.

The backward scheduling algorithm also considers the shop calendar for weekends, shutdowns, holidays, and partial days.

Backward Scheduling Process

The algorithm starts with the due date of the shop order or planned order. The system makes the following calculations for each operation in the reverse sequence:

  1. The number of move days is subtracted from the due date (or initial date of the previous operation) to get the due date for this operation. The move days are only used on valid shop calendar days.
  2. The system uses the following calculation for the number of clock hours for the operation: Standard run or machine hrs/No. of operators + setup hours
  3. The number of clock hours is spread over the available daily capacity of the work center for those given days. The system uses the following calculation for the daily capacity of the work center: Number of shifts x hours per shift x average efficiency/100
  4. Each day is checked against the shop calendar; the calculation bypasses inactive days or adjusts for any changes in the work center capacity for that day.
  5. Queue time days are subtracted in the same manner as move time days. The resulting date is the operation start date.

The algorithm then goes to the previous operation. When all operations have been included, the resulting date is the scheduled start date of the shop order. Note that MRP uses the item lead time to determine material requirement dates on planned orders.

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Tips:  LX | BPCS | M3

TECHNOLOGY: Facility Security Ranges

Previously, a user could complete the Cost Transfer (CST920) process for any range of facilities regardless of their security settings established in SYS600. This enhancement verifies the user security settings set up in SYS600 before processing cost transfers for a range of facilities in CST920. If the user has authority for a facility range, but there are facilities within that range that are not authorized, the program skips those facilities and completes the cost transfer process.

FINANCE: Expiration Date for Quotes and RMAs

A Cancel-by-Date has been added to the Quote Header and RMA Header panels. This optional field can limit how long a quote or authorization to return items for credit is valid.  

For quotes, this enhancement provides an optional end date for the quote. For RMAs, it provides an optional date by which the customer must return the items to receive the credit listed on the RMA.

The Cancel-By-Date prints on the Order Acknowledgement and RMA Acknowledgement to inform the customer of this important limitation to the quote or return authorization. 

An Order Entry user cannot copy the quote to create a new order if the Cancel By Date has caused the quote to expire.

OPERATIONS: Default Split Salesperson to Customer Orders

Sales commissions are based on combinations of the Primary, Split, and Line-Level salesperson and the commission codes defined for the customer and item. You can now define the Split Salesperson in the same master files as the Primary Salesperson. While the Primary Salesperson is mandatory, the Split Salesperson is optional. It defaults during Order Create using the identical hierarchy as Primary Salesperson. Using Split Salesperson provides more flexibility in the calculation of sales commissions. The ability to define a default Split Salesperson improves the accuracy of sales commission qualification and calculation and reduces maintenance and adjustments necessitated by corrections.

Previously, a user could complete the Cost Transfer (CST920) process for any range of facilities regardless of their security settings established in SYS600. This enhancement verifies the user security settings set up in SYS600 before processing cost transfers for a range of facilities in CST920. If the user has authority for a facility range, but there are facilities within that range that are not authorized, the program skips those facilities and completes the cost transfer process.

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Tips: LN | Baan

To improve performance and reduce database growth, deleting records is highly effective. The disadvantage of deleting records is that data is no longer available. Usually, however, not all records need to be saved. For example, line activities are stored by warehouse. Normally, you do not need to keep these records. Therefore, after closing a warehouse order, line activities can be removed. The User's Guide for ERP LN Archiving describes several sessions you can use to delete old data. Other data such as items and business partners can be reviewed once in a while, after which you can delete the data you no longer need. For every order and contract table a session is available to archive and delete old orders. In these sessions, you can specify several characteristics to select the orders to be removed, such as date or status. Run these sessions on a regular basis.

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