Field help (PTHCCE1) 

The analytical dimensions are initialized in compliance with the Default dimensions setup (PTH dimension code). These dimension codes can be modified manually if authorized by the transaction.

If the receipt line arises from an order line, the analytical dimension types are then loaded by the analytical dimensions present in the order line. If analytical dimension types are not specified on the source document, an attempt to initialize these analytical dimension types is made according to the default dimensions code.

When an analytical dimension type is used for the Project management tracking, then any modification of the project code made at header level will be redistributed to the lines; if the modification applies to a document line, then the dimension code of the dimension type will be reset. This reinitialization is compliant with the Default dimensions setup.

In the case of a receipt for an inter-site or inter-company delivery, analytical dimensions inherit from the delivery dimensions, based on the default dimension code set up for the PTD receipt line.
During the purchase invoice control, arising from the receipt line, the analytical dimensions entered on the receipt line are transferred to the invoice line.