The table below describes the messages that may be generated by the project master scheduling process.
| Message | Description |
| Actual demand is past-due (late shipment) | Generated any time when the real demand, in the form of customer orders, material requisitions, etc. is past-due relative to the project master scheduling run date. |
| Past-due released or firm-planned SO | Generated any time the supply is past-due relative to the run date. |
| Negative projected available | Generated when the projected balance becomes negative due to insufficient supply. |
| Allocated exceeds on hand | Generated when the quantity allocated or demanded is greater than the quantity on-hand in inventory. |
| On-hand is below the safety stock | Generated when the quantity on-hand in inventory falls below the safety stock (defined for the part in the Planning Data tab in the Inventory Part window) for an activity. For each activity in the project, you define if safety stock should be generated for that activity or not. |
| MS-plan is within the planned time fence | Generated when a project master schedule receipt is found between the demand and the planning time fence. |
| The system generated MS-plan has been set to zero within the planned time fence | Generated when system-generated project master schedule receipts are set to zero inside the planning time fence. |
| Forecast consumed outside Forecast Consumption window | Generated when the forecast is consumed by the actual or planned demand outside of the consumption you have defined for the part. |
| Insufficient unconsumed Forecast to satisfy Actual Demand | Generated when the unconsumed forecast is not sufficient to meet the actual demand. |
| Insufficient unconsumed Supply to satisfy Actual Demand | Generated when the unconsumed supply is not sufficient to meet the actual demand. |
| Projected Balance is below Safety Stock | Generated when the projected balance falls below the safety stock quantity (defined in IFS/Inventory) for an activity. For each activity in the project, you define if safety stock should be generated for that activity or not. |
| Order Gap Time was not considered in the period | Generated when remaining receipts load on to the forecast date without considering the order gap time. This will happen when the project MS planner meets the planning time fence when going backwards in time from the forecast date to create project MS receipts according to the order gap time and maximum lot size specified for the inventory part. |
| Insufficient supply, MTR excluded from planning | Generated when there is insufficient supply for the MTR. Therefore the MTR is excluded from the project master scheduling calculation. |