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ERP Planning Tip #7: Prioritizing Planning Messages and Signals

The following process map diagrams a planner’s “day-in-the-life” process. It offers a perspective that spans our previous tips, today’s tip and upcoming tips. As you can see below, in this tip, we cover planning messages and signals.


The planning engine calculates suggested replenishment orders based on net rolling requirements, as follows: an item’s inventory on-hand plus time-phased existing demand minus existing replenishment

While performing its calculations, the engine may generate various messages or signals. Since the planning engine issues recommendations that relate to real orders and real money, it’s important for planners to appropriately prioritize how they deal with planning messages and signals. In this tip, we suggest the following priorities.

Priority #1: Resolve Planning Messages Relating to Engine Exceptions

Engine exceptions refer to conditions that the planning engine cannot reconcile. They may include, for example, inconsistent system parameters or incorrect item settings. When a planning engine encounters this type of exception, it issues a planning message that recommends corrective action.

Exception messages indicate the existence of data that may prevent the planning engine from properly calculating item plans. As a result, these messages are the highest priority action items, and should be addressed first. Once resolved, the planning engine should be re-run to regenerate the outputs.

Priority #2: Resolve Execution-Level Order Planning Signals

In terms of priority, planners should next turn their attention to planning signals relating to execution-level orders relating to actual purchase orders, work orders or distribution orders. Though there are many signal types, common examples include:

  • Rescheduling of orders “in”, i.e. expediting to arrive earlier
  • Rescheduling of orders “out”. i.e. delaying arrival
  • Re-allocation of order quantities, i.e. expediting or delaying a portion of an order
  • Canceling an order in its entirety

These signals rank as the second most important because they affect actual orders that have either been purchased, are in production or are in the supply chain. Any modification will likely trigger incremental costs.

Priority #3: Resolve Planned Order Suggestion Signals

The engine may signal that certain planned order suggestions need additional attention. Common examples include the following:

  • Inconsistencies between generated suggestions and order modifiers including, for example, order multiples, order minimums and order maximums (for a refresher on order modifiers, please read ERP Planning Tip #2)
  • Planned order start dates that are past-due
  • Planned delivery dates that are past-due

It’s important to note that these signals relate to planned order suggestions, not actual orders. For this reason, they are of the lowest priority, and should be addressed only once exception messages and actual order signals have been dealt with.

In our next tip, we will discuss the planned order review process and the procedure to transfer these order suggestions into actual, execution-level orders.

Would your organization like to reduce supply chain and inventory costs, and improve production efficiency? If so, contact our ERP and operations experts to learn how we can help.

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