AEAT publishes version 1.16 of the G4 technical guide for temporary storage declarations

Spain’s AEAT has published version 1.16 of the G4 technical guide for temporary storage declarations. It clarifies instructions related to amendment operations and removes the requirement to declare the means of transport and master bill number in the unpacking message, provided the MRN of the master bill to be unpacked is declared in supporting document 1841. The version also explains the use of informational item lines.