With the continuous inventory method, you take inventory for a certain number of storage bins in a storage type. The inventory can take place at any time during the fiscal year. Continuous inventory has the following advantages over the annual inventory count at the end of the fiscal year:
Inventory methods are defined for each storage type. To define a continuous inventory for a storage type, see Activities → Physical Inventory → Define Types per Storage Type in the Warehouse Management section of the Implementation Guide (IMG) documentation.
To run a continuous inventory, you need to complete the following steps in the order displayed:
Selecting Storage Bins
When selecting storage bins for inventory, you can only select storage bins for which there are no open transfer orders.
The system displays a list of all the storage bins that you selected. By default the list is sorted by the number of quants. You can also sort the list by date or by storage section. The system has selected all storage bins the marked for further processing. You can use the tasks in the Edit menu to select and deselect the storage bins.
Creating the System Physical Inventory Document
Once you have selected the storage bins for the inventory, you must create the physical inventory document. To do so, choose List _ Create documents from the menu bar of the list screen when you select the storage bins. The system issues a message that the inventory document has been created and places an asterisk in the first column.
What Happens in the System?
Activating/Changing the Physical Inventory Document
Before you can continue with the inventory you must activate the physical inventory document. However, this can be done only when there are no open transfer order items for the storage bins in the physical inventory document. In other words, all transfer orders for the storage bins must be confirmed.
The system returns to the initial screen with a message that the inventory document has been activated. In the change task for the physical inventory document you can also add new items to the physical inventory document (new bins to be inventoried) or delete items from the physical inventory document. You can create and activate the physical inventory document in a single step. On the screen that lists the selected storage bins, choose List → Activate (instead of List → Create).
What Happens in the System?
Printing the Physical Inventory Document
To print the physical inventory document
You set the parameters for printing the physical inventory document in Customizing for Warehouse Management under Logistics Execution → Warehouse Management → Activities → Physical Inventory → Define default values.
Closing the Inventory
To complete the inventory process in WM, you must clear the inventory and unblock the storage bins. These two steps can be done with a single task. You also use this task to process any differences between the counted results and the quantity that was actually in the storage bin.
The system displays a list of physical inventory documents that meet the selection criteria. For example, you can select all inventory documents in a storage type for which the inventory items are "partially counted". From this list you can select the desired inventory document or documents for further processing.
What Happens in the System?
At this point, if there are no differences, the inventory process is complete. However, when differences are found between the counted amount and the book inventory, they must be processed in WM. The book inventory must be updated in both WM and IM.
Processing Inventory Differences in WM
When you enter the results of the inventory count, you inform the system that there are differences between the counted amount and the book inventory. You record these differences in WM to reflect the actual stock in the storage bins. At the same time negative and/or positive bin quantities are also recorded on the interim storage area for differences. These differences must be cleared from the interim storage area and posted in the Inventory Management (IM) component.
The following steps are a suggestion of how you can use the tasks within WM to process differences.
When you enter the inventory results in WM and there is a difference between the counted amount and the book inventory, the system issues a message that warns you about the difference and displays a window. While processing inventory differences in WM, this step gives you a chance to change the amount you entered in case you entered the amount incorrectly. WM also gives you the opportunity to perform a recount of materials in the storage bin.
Displaying a List of Inventory Differences
If you feel that differences should be investigated, you can request a recount of the bins. To find
out where the differences are:
The system displays a list of the items in system inventory records for which there is a difference between the counted amount and the book inventory.
Recounting Inventory Results
You need to indicate which system inventory record items are going to be recounted.
Additionally, you can enter a percentage or monetary value as a deviation threshold on this screen. Choose ENTER to continue. The system displays a list of items in the system inventory record.
The system issues a message that a recount was created for the selected items in the system inventory record. A version number is assigned to the recount. The Inv.status field in the system inventory record is reset from Z (counted) to A (count incomplete). The system cancels the setting of the Print completed indicator in the system inventory record.
Reprinting the Warehouse Inventory List
To reprint the warehouse inventory list
Entering the Results of the Recount
To enter the results of the recount
Closing the Inventory with Differences
To close an inventory with differences, you use the same task that is described in Closing the Inventory. After you have selected the bins that you want to clear and have chosen Environment → Activate documents (see step 4 in Closing the Inventory), the system issues a message that displays the number of the transfer order that it created to post the difference.
In addition to creating a transfer order, the system updates the status in the system inventory record. The inventory data in the storage bin record is updated and the storage bin is unblocked. If you display the transfer order, you see that a quantity of material (the difference between the counted amount and the book inventory) is transferred from the interim storage area for differences and placed into the storage bin in which the difference was found.
To clear the inventory differences from the interim storage area in WM and to post the differences in IM:
When you clear inventory differences in Inventory Management, the system also takes stock with lot numbers into consideration. When you use this function, the quantity in the inspection lot is adjusted accordingly.
Instead of clearing excessive quantities with an inspection lot during inventory counting in Inventory Management, these quantities are added to the existing inspection lot. The system does not create a new inspection lot.
Entering the Inventory Results in WMS
Once the inventory list has been printed, the warehouse worker can begin the physical inventory count in the warehouse. The warehouse worker enters the counted results in the column provided in the list. After the warehouse worker has entered the counted results on the inventory list, you can enter these results in the system.
If the count data is loaded into the system using IDoc WMIVID01, the Name is taken from the new IDoc field. If you work synchronously with mobile data entry (MDE) scanning devices that function as remote terminals, the system copies the name used when logging on into the field. For recounts, the name can be overwritten with a new name. When you change an inventory count document, the system only changes the name when the quantity in the corresponding item is changed. Choose ENTER.
If a storage bin is designated as empty and the counted result shows no stock, you can select the item in the E column. In this way you confirm that the storage bin is actually empty. If a storage bin is designated as empty but the counted result shows a quantity, enter the material and the quantity counted. If a storage bin has more bin quantities than are listed in the data entry screen, choose Edit →New Entries → List or Individual to add the material and quantity. If you enter a counted amount that is different than the book amount, the system may display a message and a difference window, depending on the size of the difference.
What Happens in the System?
The Inv.status field in the system inventory record is set to Z, which means that the inventory count has been completed. An inventory can also have the status of A, which means that the count has been started but not completed (such as in the case of a recount). All other statuses related to the inventory for the storage bin and in the system inventory record are unchanged.
Using Batch Input for Inventory Count Results
When entering inventory count results, you can enter all information on a single screen without using dialog boxes. This makes it possible to enter count results using batch input (screen sequence: 201, 202, 202....). If not all count results are entered, the dialog box that appears when you save data is suppressed during batch processing. This way, the program that creates the batch input file does not have to take into consideration whether all the data necessary for a particular screen has been entered or not.
If you process data in an external system and then want to load it into the SAP System, you must write a program that transfers this data in batch input format to the corresponding SAP transaction Li11. Manually, the process is carried out in WM as follows:
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Sap Wm Tutorial
Warehouse Management Guide
Warehouse Structure In The Warehouse Management System
Planning And Monitoring
Basic Stock Management
Hazardous Materials Management
Wm Interface To Quality Management
Stock Transfers And Replenishment
Posting Changes In Wm
Putaway And Picking Strategies
Storage Unit Management
Interfaces To External Systems
Mobile Data Entry
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