If the Storage Dimension group of a product is WHS enabled, it is not possible to change site/warehouse in the batch reservation screen for SOs.

Currently it is only possible to search for batches which conform to customer specific batch attributes via a sales order, which requires site and warehouse dimensions to be specified. Without WHS enabled Storage dimensions and specified reservation hierarchy, the site and warehouse can be changed on the batch reservation pop up against the sales order line, however if it is enabled, this is not possible and the user loses stock visibility.

A solution which enables the user to search across multiple sites for batch which match the requirements of the customer is needed. Enabling customer batch attribute searches in a modified stock list screen, or via batch reservation on a sales order line, would prevent issues planning the fulfilment of demand when customer specific batch attributes are used.