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In this step, you specify the floats for determining the basic dates of the planned orders. The floats are allocated to the material via the release period key in the material master RECORD.

Opening period

The opening period represents the number of workdays that are subtracted from the order start date in order to determine the order creation date. This time is used by the MRP CONTROLLER as a float for converting planned orders into purchase requisitions or into production orders.

Float before production 

The float before production represents the number of workdays that are planned as a float between the order start date (planned start date) and the production start date (target start date). On the one hand, this float is intended to guarantee that delays in staging a material do not delay the production start. On the other hand, the production dates can be brought forward by means of the float to cope with capacity bottlenecks.

Float after production

The float after production should provide a float for the production process to cope with any disruptions so that there is no danger that the planned finish date will be exceeded. You plan the float after production between order finish date (planned finish date) and SCHEDULED END (target finish date).

Release period

The release period represents the number of workdays that are subtracted from the order start date in order to determine the production order release. The release period is only relevant for production order management.

In this step, you specify the floats for determining the basic dates of the planned orders. The floats are allocated to the material via the release period key in the material master record.

Opening period

The opening period represents the number of workdays that are subtracted from the order start date in order to determine the order creation date. This time is used by the MRP controller as a float for converting planned orders into purchase requisitions or into production orders.

Float before production 

The float before production represents the number of workdays that are planned as a float between the order start date (planned start date) and the production start date (target start date). On the one hand, this float is intended to guarantee that delays in staging a material do not delay the production start. On the other hand, the production dates can be brought forward by means of the float to cope with capacity bottlenecks.

Float after production

The float after production should provide a float for the production process to cope with any disruptions so that there is no danger that the planned finish date will be exceeded. You plan the float after production between order finish date (planned finish date) and scheduled end (target finish date).

Release period

The release period represents the number of workdays that are subtracted from the order start date in order to determine the production order release. The release period is only relevant for production order management.

MRP Groups

In this step, you can carry out the total maintenance of the MRP groups and you can allocate a material type to an MRP group.

The MRP group is an organizational object that can be used to allocate special control parameters for planning to a group of MATERIALS. You can maintain MRP groups if planning control per plant is not precise enough for your requirements and you want to allocate certain material groups different control parameters from the plant parameters. For this purpose, MRP groups are DEFINED with these specific control parameters and are assigned to the material in the material master record (MRP 1 screen).

For example, the following control parameters can be set for the total planning run:

• the creation indicator for the plarequisitions, MRP lists, and so on)
• the planning horizon
• the CONSUMPTION mode

The following is valid for total planning and single-item planning:

for all materials without an MRP group, the system uses the plant parameters, or the entries in the initial screen of the planning run for all materials with an MRP group, the system uses the parameters recorded in the MRP groupning run (creation of purchase

MRP Groups

In this step, you can carry out the total maintenance of the MRP groups and you can allocate a material type to an MRP group.

The MRP group is an organizational object that can be used to allocate special control parameters for planning to a group of materials. You can maintain MRP groups if planning control per plant is not precise enough for your requirements and you want to allocate certain material groups different control parameters from the plant parameters. For this purpose, MRP groups are defined with these specific control parameters and are assigned to the material in the material master record (MRP 1 screen).

For example, the following control parameters can be set for the total planning run:

The following is valid for total planning and single-item planning:

for all materials without an MRP group, the system uses the plant parameters, or the entries in the initial screen of the planning run for all materials with an MRP group, the system uses the parameters recorded in the MRP groupning run (creation of purchase

The MRP controller is a person or a group of persons responsible for monitoring material AVAILABILITY. You can use the number entered here, for example, to select the PLANNING results per MRP controller.

Every material that is relevant to the planning run must be assigned an MRP controller number in the material master record.

You can also determine a special person for BACK order processing who receives a mail if a goods RECEIPT was posted for a missing part. You must enter the mail name of this person in the field entitled, recipient name.

In addition, you can define a person or a group of persons, who are to informed if you send a mail from the MRP list or stock/requirements list to the MRP controller for the material displayed. Actions

The MRP controller is a person or a group of persons responsible for monitoring material availability. You can use the number entered here, for example, to select the planning results per MRP controller.

Every material that is relevant to the planning run must be assigned an MRP controller number in the material master record.

You can also determine a special person for back order processing who receives a mail if a goods receipt was posted for a missing part. You must enter the mail name of this person in the field entitled, recipient name.

In addition, you can define a person or a group of persons, who are to informed if you send a mail from the MRP list or stock/requirements list to the MRP controller for the material displayed. Actions

In the stock/requirements list, the most up-to-date stock and requirements SITUATION is displayed.

The main difference between the MRP list and the stock/requirements list is that each time the stock/requirements list is CALLED up, the system selects the VARIOUS MRP elements and displays the most up-to-date situation. You thus always see the CURRENT availability situation of the material in the stock/requirements list. Changes that are made after the PLANNING date are displayed directly, so the list is therefore dynamic.

Stock/requirements lists are not saved in a fixed state in the system, but are subject to change and only exist in the working memory.

As stock/requirements lists are subject to change, they cannot be set with a processing indicator.

In the stock/requirements list, the most up-to-date stock and requirements situation is displayed.

The main difference between the MRP list and the stock/requirements list is that each time the stock/requirements list is called up, the system selects the various MRP elements and displays the most up-to-date situation. You thus always see the current availability situation of the material in the stock/requirements list. Changes that are made after the planning date are displayed directly, so the list is therefore dynamic.

Stock/requirements lists are not saved in a fixed state in the system, but are subject to change and only exist in the working memory.

As stock/requirements lists are subject to change, they cannot be set with a processing indicator.

Definition of the MRP List:

The system creates MRP lists during the planning run according to how you set the creation INDICATOR. These lists contain the planning result for the material. The MRP list always displays the stock/requirements situation at the TIME of the last planning run and it also provides a work basis for the MRP controller. Changes that are made after the planning DATE are not taken into consideration, so the list is static.

MRP lists are stored in the system until they are EITHER deleted MANUALLY or replaced by new lists from a subsequent planning run.

Definition of the MRP List:

The system creates MRP lists during the planning run according to how you set the creation indicator. These lists contain the planning result for the material. The MRP list always displays the stock/requirements situation at the time of the last planning run and it also provides a work basis for the MRP controller. Changes that are made after the planning date are not taken into consideration, so the list is static.

MRP lists are stored in the system until they are either deleted manually or replaced by new lists from a subsequent planning run.

RED = the stock is not AVAILABLE
yellow = the stock is in average LEVEL stock
GREEN = the stock is available

red = the stock is not available
yellow = the stock is in average level stock
green = the stock is available