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shift_and_tag ensures that all other dates in the XML-file are adjusted in reference to today's date.
Afterwards it will update the 'recorddatetime'-tag.
The 'recorddatetime'-tag needs to exist in the XML-file prior to executing it, else it will not work.
Example:
Suppose that today's dat day is :
| original date | date after shift_and_tag | |
| <recorddatetime> | 25/05/2018 | 6/06/2018 |
| transaction 1: tomorrow | 26/05/2018 | 7/06/2018 |
| transaction 2: yesterday | 24/05/2018 | 5/06/2018 |
| transaction 3: three days from now | 28/05/2018 | 9/06/2018 |
no_tag_and_no_shift will not create or update the 'recorddatetime'-tag and it will not adjust all other dates according to today's date.
If there is a 'recorddatetime'-tag in the XML-file and you run EVS with no_tag_and_no_shift, the tag will be removed.
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