“GUID” is one of the patterns that you can select on the Match panel. Use it to make a field match a globally unique identifier such as {7E9081B5-9A6D-4CC1-A8C3-47F69FB4198D}.
This pattern can only be used to match arbitrary GUIDs. If you want to match specific GUIDs, use the “literal text” pattern to match a single GUID, or the “list of literal text” pattern to match one from a list of GUIDs.
A GUID is a 128-bit number usually written as {A4F90AD5-DC63-4A1D-A5EC-F44E5B15C5D9} with braces and hyphens. You can choose whether your regular expression requires or allows the braces.
A GUID is a 128-bit number usually written as {A4F90AD5-DC63-4A1D-A5EC-F44E5B15C5D9} with braces and hyphens. You can choose whether your regular expression requires or allows the hyphens. If the field validation mode is "strict" or "average", the hyphens will only be matched at their correct positions. In "loose" or "none" mode, the patter will allow any combination of hexadecimal digits with or without hyphens.
Choose whether the hexadecimal digits A to F in the GUID should be uppercase or lowercase.