After the BOM explosion has taken place, you can delete components, change requirements quantities and dates, and add new components to be provided to the list. Proceed as follows:

• In the SKU overview, select an SKU whose components you want to change and choose Environment ® Components ® Overview in the purchase order or Goto ® Components ® Overview in the purchase requisition.
• You have a variety of options in the component overview:

• To delete individual components to be provided, select the corresponding components and choose Edit ® Delete. If you have entered a purchase order item as a subcontracting item, you must enter at least one component to be provided for each SKU. Therefore, you can never delete all the components for an SKU.
• You can change the requirements quantities and requirements dates of the individual components.
• To add new components to the list, choose one of the two processing modes Collective entry or Detailed entry and enter additional components there.

If you have changed a material BOM, you can transfer these changes to all SC orders that do not yet have a goods receipt. To re-explode a BOM, choose Environment ® Components ® New BOM explosion.

When a BOM is re-exploded, the existing components to be provided are deleted and respecified by the BOM explosion. All of the manual changes to the components are then lost. If you only change the quantity of the header material without triggering a re-explosion, the manual changes in the list of components will remain and will be adjusted proportionally to the quantity change of the header material.

Subsequent changes to the delivery date or the purchase order quantity are only possible at SKU level.

• If you change the purchase order quantity of individual SKUs, the requirements quantity of the corresponding components to be provided will be changed proportionally without a BOM having been re-exploded. If you want the requirements quantity of individual components to remain fixed even when the purchase order quantity is changed, set the indicator Qty. is fixed in the component overview.
• If you change the delivery date for individual SKUs, only the requirements date of the components will be recalculated. Since the components are not redetermined, you must then execute a BOM re-explosion.