See What is an example of an Ad-ID code? for a general description of an Ad-ID code.
When a prefix is registered, one of the following formats must be selected to determine how the characters will be generated after the prefix.
The following options are assigned automatically when the Ad-ID is created and include overflow.
4 Digit Code: 4 characters count sequentially the number of Ad-IDs issued under the prefix
Example: ABCD0001000, ABCD0002000 to ABCD9999000
1 Digit Year + 3 Digit Code:The first digit is the last number in the current year. The next 3 digits sequentially count the number of Ad-IDs issued under the prefix.
Example using year 2017: ABCD7001000, ABCD7002000 to ABCD7999000
3 Digit Code + 1 Digit Year: The first 3 digits sequentially count the number of Ad-IDs issued under the prefix. The next digit is the last number in the current year.
Example using year 2017: ABCD7001000, ABCD7002000 to ABCD7999000
The following options require manual input from the user. See Why am I being asked to enter a code?
Custom 4: The 4 characters after the prefix must be assigned by the user and may be any combination of letters or numbers. The last 3 characters are overflow.
If the 4 characters entered have already been used under the prefix, the system will use the overflow characters to ensure the code is unique. For example: ABCD1Y7W000, ABCD1Y7W100
The custom 4 characters CANNOT be edited.
Custom 7: The 7 characters after the prefix must be assigned by the user and may be any combination of letters or numbers. The last 3 characters are overflow.
If the 7 characters entered have already been used under the prefix, an error message will be displayed and the user will need to enter a different code.
Example: ABCD12A1H65, ABCD5786485, ABCD45TEHJ8
The custom 7 characters CAN be edited.
