Setting up backflushing

Backflushing materials

Use the following settings in the Item - Production (tiipd0101m000) session to set up the items for backflushing:

• Select the Allow Backflushing check box for the PIN item.
• Select the Materials check box for the CLOCK item.

When you create a production order, these check boxes determine the default settings of:

• The Materials check box in the Estimated Materials (ticst0101m000) session (for PIN).
• The Backflush Materials check box in the Production Order (tisfc0101s000) session.

You can modify these check boxes for a particular production order. LN backflushes the material only if you select both of these check boxes.

If you clear the Backflush Materials check box, LN clears the Materials check boxes for all materials.

Backflushing hours

Use the following settings to set up the items for backflushing of hours:

• Select the Backflushing check box for the ASSEMBLE task in the Task Relationships (tirou0104m000) session.
• Select the Hours check box for the CLOCK item in the Item - Production (tiipd0101m000) session.

When you define an operation for the ASSEMBLE task, the Backflushing check box in the Task Relationships (tirou0104m000) session determines the default setting of the Backflushing check box in the Routing Operations (tirou1102m000) session.

When you create a production order, LN sets the defaults as follows:

• The Backflushing check box in the Routing Operations (tirou1102m000) session determines the default setting of the Report Labor Hours check box in the Production Planning (tisfc0110m000) session.
• The Hours check box in the Item - Production (tiipd0101m000) session determines the default setting of the Hours check box in the Production Order (tisfc0101s000) session.

You can modify these check boxes for a particular production order. LN backflushes the hours only if you select both of these check boxes.

If you clear the Hours check box, LN clears the Report Labor Hours check boxes for all operations.

To make backflushing of hours possible, you must also:

• Enter a value in the Default Labor Resource field in the Work Centers (tirou0101m000) session.
• Enter a value in the Labor Type field in the Production Order Parameters (tisfc0100s000) session to determine whether work is charged as normal hours or overtime hours.

Serialized items

Serialized items can only be backflushed if in the Item - Warehousing (whwmd4500m000) details session the Serials in Inventory check box is cleared, and the Register Lot Issue During As Built field in the Item - Warehousing (whwmd4600m000) session is Yes. In all other cases, serialized items cannot be backflushed.

If the serialized item is lot-controlled, the lot from which the items are backflushed is based on the outbound method ( Last In First Out (LIFO), First In First Out (FIFO)) as is defined in the Item - Warehousing (whwmd4500m000) details session.

Backflushing in Job Shop

Set the following parameters in the Production Order Parameters (tisfc0100s000) session:

• Select a backflushing method to determine the level of user interaction in the backflushing procedure.
• Select the devices for the backflushing materials and hours reports.

Backflushing in Repetitive Manufacturing

You can manage materials backflushing in the Repetitive Manufacturing Parameters (tirpt0100m000) session. Depending on the selected backflushing method, backflushing is triggered after quantities end item are reported completed, when a shift is reported completed, or one of the other triggers.

Backflushing updates the work cell cost document.