Backflush Logic
Backflush enables you to issue components to work orders and complete the assembly at one time.
Backflush is compatible with or without real time build and WIP work orders.
To automatically consume work order components at the standard BOM quantities, when you create a manufacturing work order, check the Backflush box. If you check this box, reporting consumption is unavailable in the mobile scanner, but reporting production is still available. For more information, see Creating a Manufacturing Mobile Work Order.
Automated backflush in Manufacturing Mobile also supports lot controlled items. Lot controlled components are backflushed on a FEFO (First Expiry First Out) basis. If you are an Administrator or a production manager who wants to disable backflush for lot controlled items at an account level, see Configuring Manufacturing Mobile Preferences.
If you do not use bins, the system completes checks at a location level. All stock and logic apply at a location level.
The Build Even If Components are Insufficient During Backflush preference determines the behavior for issuing components:
-
If you set the preference and the staging bin has insufficient quantity, the available components are still issued to process all the reported quantity. It results in Successful Completion and Successful Issue transactions.
A message on the Work Messages subtab informs you that the quantity consumed is less than the required quantity.
-
If you do not set the preference and the staging bin has insufficient quantity, the build or completion fails in the backend.
A warning message appears on the Work Messages subtab.
Refer to the following examples of scenarios for WIP and non-WIP work orders with backflush when this preference is set.
WIP Work Orders with Backflush
|
Component Name |
Operation Step |
Staging Bin |
Work Order BOM Quantity |
Staging Bin Available Quantity |
|---|---|---|---|---|
|
COMP1 |
|
STGBIN1 |
1 |
10 |
|
COMP2 |
1 |
STGBIN1 |
1 |
0 |
|
COMP3 |
2 |
STGBIN1 |
1 |
0 |
|
COMP4 |
3 |
STGBIN1 |
0.5 |
10 |
Operation Step 1 Reported for Quantity of 10
-
Completion Transaction for Qty 10
-
COMP1 Issue Transaction for Qty 10
-
COMP2 Issue Transaction for Qty 0
-
COMP3 Issue Transaction for Qty 0
-
COMP4 will not be processed
-
Warning message in the work messages record for COMP2, COMP3
Non-WIP Orders with Backflush
|
Component Name |
Staging Bin |
Work Order BOM Quantity |
Staging Bin Available Quantity |
|---|---|---|---|
|
COMP1 |
STGBIN1 |
1 |
10 |
|
COMP2 |
STGBIN1 |
1 |
0 |
|
COMP3 |
STGBIN1 |
1 |
0 |
|
COMP4 |
STGBIN1 |
0.5 |
10 |
Production Quantity for Quantity of 10
-
Build Transaction for Qty 10
-
COMP1 Processed for Qty 10
-
COMP2 Processed for Qty 0
-
COMP3 Processed for Qty 0
-
COMP4 Processed for Qty 5
-
Warning message in the work messages record for COMP2, COMP3