custom field file upload | filenames | filename tag syntax

How is it possible to add the date, start and end time as a timestamp of the upload in the file name during file upload? Currently all uploads are placed in the folder /images/osservicesbooking/fields/. Thus no assignment is possible.

Example: filename_dmY_Hi-Hi.jpg

Although the user field »show in email« is activated the filename is not shown in the mail. how can i show the filename of the upload in the mails and PDF invoice?

Regards Peter

Hi Peter,
Actually, the uploaded file names are changed when component to process uploading. The new name format is: [Order ID][current timestamp][filename]
Thanks
Dam

By the way, if you want to show value of field in emails, please using tag
{FIELD_ID} please ID number by ID of custom fields. For example {FIELD_12} will show value of custom extra field with ID 12
Thanks
Dam

thanks for the reply. is it possible to get the field value in the pdf invoice? neither {FIELD_1} nor [FIELD_1] syntax ist working.