ERPLY Berlin Back Office version 5.3.19

Fixed: Product descriptions no longer disappear when re-saving product card.
"Descriptions" is now the first tab on product card. This fixes the issue where opening the product card displayed the list of product pictures, but the pictures themselves were not visible.
Fixed: it was not possible to add new customer groups (button was not visible).
Polish translations updated.
Layout of the tax rate form has been improved.
Restored the help tips in Inventory module: "Select for which locations you would like to see stock on hand." and "To see all items in stock, enable the filter ..."
In a promotion "Buy product X and get product Y with a discount", it is now possible to set how many items customer can get with a discount: only one, a specific number of items, or unlimited items.
Improved: ERPLY now displays inventory quantities with precision up to 6 decimal places (formerly 5), and the precision is more consistent throughout the system. It is also possible to make inventory micro-adjustments, also with precision up to 6 decimal places.
Fixed: The "Reason" field on Inventory Write-Offs is no longer overwritten by the system when re-saving the document in certain cases.
Fixed: If Reason Codes have been reclassified, so that a certain reason no longer applies to Inventory Write-Offs, re-saving an old write-off with that reason code will retain it; field value will not be overwritten.
Custom receipt printout format implemented for a UK customer.
Security fixes and optimizations.