Field help (LOCSIH4) 

For invoices, specify the location that is the origin of the issue. To select a location, use the selection window available from the Actions icon.
Specifying the location is not necessary if:

If the product is managed with serial numbers, only this number is necessary to determine the stock to be issued.
If this is not the case, the lot, sub-lot and location (depending on the management method for the product) are necessary.

For credit memos, the access to the field depends on the settings of the Credit memo entry transaction used.

When the original invoice has triggered a stock movement, the status, license plate number and location do not arise from the original invoice, contrary to the other stock information. These three pieces of information can be accessed from and initialized by the stock receipt rules.

When the credit memo line is direct, the status, license plate number and location can be accessed from and loaded by the stock receipt rules.
If the product is managed by license plate number, the location associated to the LPN is displayed. It cannot be modified.

If the product is managed by location and no license plate number is entered, a default location can be initialized according to the management rule assigned to the Delivery return movement type, and to the locations set up in the Product/site record. The semantic identifying a location category is used to associate in the Article/site record a location type and a potential location. The location type and the location defined in the Product-site record can refer to a group of location types and/or locations if the wild cards (?,*) are used in their definition (see the Location types and Product-site documentations). In the case of some location types, the assignment depends on their availability or their capacity (replenishment management). These pieces of information can be modified.

If the customer credit memo transaction allows it, a dock type location can be entered in the credit memo header. If this is the case, this location is suggested by default. The locations of the type dock are not suggested in the selection if the customer credit memo transaction does not specify receipts to dock.

In some cases, the user may choose not to enter the location type and/or location, because the goods to return will be distributed across different storage locations. This distribution is specified in the stock detail window. If a $ symbol appears in these fields at the end of entry, it means that different location types and/or locations have been assigned and that a sub-detail exists for the stock lines.